The graph of y = 5 is a line parallel to the x-axis at a distance of 5 units from the origin.
What is graph?In mathematics, a graph is a visual representation or diagram that shows facts or values in an ordered way.
The relationships between two or more items are frequently represented by the points on a graph.
The y = 5 graph is a line that runs parallel to the x-axis at a distance of 5 units from the origin.
Assuming Y-axis as vertical line, X-axis as horizontal line
(see it in attached image)
Graph of y = 5 is the line where y is not changing or y always be 5, only x will change.
Graph of y is the straight line passing through 5 and parallel to X axis
Therefore, a line that is 5 units from the origin and parallel to the x-axis forms the graph of y=5.
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What are the 3 types of numbers in the real number system?
Three types of numbers fall under the heading of "real numbers," which we will discuss in a moment. Real numbers include all types of numbers, including whole, rational, and irrational numbers.
What is Real number?A real number is a quantity that may be represented mathematically by an endless decimal expansion. In contrast to the counting-derived natural numbers 1, 2, 3,..., real numbers are used to quantify constantly altering quantities such as size and time. Rational and irrational numbers are both included in real numbers. Real numbers include both irrational and rational numbers such as 3, 22/7, and integers such as (-2, 0, 1), fractions such as (1/2), and decimal numbers such as (1/2).
whole = 0,1,2,3,4,5,6,7,8,9,10,11........….
rational = 12/23,3,3/4,5/6,...…
irrational = [tex]\sqrt{8}[/tex], [tex]\sqrt{-56}[/tex]etc
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Write the standard form of the equation of a parabola passing through the point (1, 32) with a minimum point at (-2, 5).
Answer:
[tex]y=3x^2+12x+17[/tex]
Step-by-step explanation:
The equation in vertex form is [tex]y=a(x+2)^2+5[/tex].
We can use the point [tex](1,32)[/tex] to solve for [tex]a[/tex].
[tex]32=a(1+2)^2+5 \\ \\ 27=9a \\ \\ a=3 \\ \\ \\ \therefore y=3(x+2)^2 + 5 \\ \\ =3(x^2+4x+4)+5 \\ \\ =3x^2+12x+12+5 \\ \\ =3x^2+12x+17[/tex]
what correlation is obtained when the pearson correlation is computed for data that have been converted to ranks? group of answer choices the phi coefficient the spearman correlation it is still called a pearson correlation the point-biserial correlation
When data are transformed to ranks and the Pearson correlation is performed, the Spearman correlation is what is obtained as a correlation.
What is meant by correlation?A statistical measure known as correlation expresses how linearly connected two variables are (meaning they change together at a constant rate). It is a typical strategy for describing straightforward relationships without explicitly stating cause and effect. The degree of a linear link between two quantitative variables is measured by the term "correlation." The degree to which two or more variables change in relation to one another is indicated by the statistical concept of correlation. A statistical metric known as correlation, which is given as a number, describes the strength and direction of a relationship between two or more variables.Therefore, the correct answer is A)the Spearman correlation
The complete question is:
What correlation is obtained when the Pearson correlation is computed for data that have been converted to ranks?
a) the Spearman correlation
b) the point-biserial correlation
c) the phi coefficient
d) it is still called a Pearson correlation
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How do you find the solution to a system of infinite solutions?
To solve systems of an infinite equation we need to determine whether the equation is dependent or independent and consistent, or inconsistent.
The number of solutions in an equation depends on the total number of variables contained in it is known as Infinite solutions.
The system of equations contains two or more equations that have two or more variables. It can be any combination such as
2 equations in 3 variables.6 equations in 4 variables.If a pair of linear equations have unique or infinite solutions, then the system of equations is said to be a consistent pair of linear equations.
For example, consider two equations in two variables as follows:
a1x + b1y = c1 ——- (1)
a2x + b2y = c2 ——- (2)
The above-given equations are consistent and dependent and have infinitely many solutions.
(a1/a2) = (b1/b2) = (c1/c2)
There are a few conditions for infinite solutions:
The system of an equation has infinitely many solutions when the lines are coincident, and they have the same y-intercept.If the two lines have the same y-intercept and slope, they are actually in the same exact line.To know more about infinite solutions:
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4x+3y=23 x-5y=0 substitution
The required solution of given equation is x = 5, y = 1.
What is substitution method to equation?The effective use of substitution relies upon two things: first, given a circumstance in which factors happen, a replacement is just a difference in factor; second, it is just successful if the difference in factor improves on the circumstance and, ideally, empowers one to take care of the worked on issue.
According to question:We have,
4x+3y=23---------()1
And
x-5y=0 ⇒ x = 5y
Put the value of x in equation(1)
4(5y) + 3y = 23
20y + 3y = 23
23y = 23
y = 1
Then x = 5y = 5(1) = 5
Thus, solution of equation x = 5, y = 1
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Which of the following lists all the roots of x^4 =x^3 +x^2 + x+2?
F {−1, 2}
H {−2, −1}
G {−1, 2, i, −i}
J {−2, −1, i, −i}
Answer:
G
Step-by-step explanation:
[tex]x^4-x^3-x^2-x-2=0 \\ \\ (x+1)(x^3+x-2x^2-2)=0 \\ \\ (x+1)(x(x^2+1)-2(x^2+1))=0 \\ \\ (x+1)(x-2)(x^2+1)=0 \\ \\ (x+1)(x-2)(x-i)(x+i)=0 \\ \\ x=-1, 2, i, -i[/tex]
How did slavery benefit the industrial revolution?
The provision of a necessary raw material for industrial production by industrial revolution benefitted for slavery.
what is industrial revolution?Agrarian and handicraft economies were replaced by industrial and machine production during the Industrial Revolution in modern history. These technical developments brought about new methods of working and living that dramatically altered civilization.
the provision of a necessary raw material for industrial production by industrial revolution benefitted for slavery.
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the names of 5 students from section a, 6 students from section b and 7 students from section c were selected. the age of all the 18 students was different. again, one name was selected from them and it was found that it was of section b. what was the probability that it was the youngest student of the section b?
The probability that the selected student was the youngest student from Section B is 2/6.
The total number of students is 18 which include
Section A: 5 students
Section B: 6 students
Section C: 7 students
Given that the selected student was from Section B
Calculate the probability of selecting a student from Section B
P(Section B) = 6/18 = 1/3
Calculate the probability of selecting the youngest student from Section B
Since there are 6 students in Section B, the probability of selecting the youngest student is 1/6.
Calculate the probability of selecting the youngest student from Section B given that the selected student was from Section B
P(Youngest student from Section B|Section B) = P(Youngest student from Section B ∩ Section B) / P(Section B)
= (1/6) / (1/3)
= 2/6
Therefore, the probability that the selected student was the youngest student from Section B is 2/6.
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what expression is equal to x^5 • x^2
help with this problem please
Solve for x.
5(x - 2) = -x + 2
/3
x = [?]
Answer:
x = 2
Step-by-step explanation:
[tex]\frac{5(x-2)}{3} = -x + 2[/tex]
expand left side:
[tex]\frac{5(x-2)}{3} = -x + 2\\\\\frac{5x-10}{3} = -x + 2[/tex]
multiply both sides by 3:
[tex]3(\frac{5x-10}{3}) = 3(-x + 2)\\\\ =5x - 10 = -3x + 6[/tex]
Add 3x to both sides:
5x - 10 + 3x = -3x + 6 + 3x
8x - 10 = 6
add 10 to both sides:
8x - 10 + 10 = 6 + 10
8x = 16
divide both sides by 8:
8x/8 = 16/8
x = 2
sales at a fast-food restaurant average $7,800 per day. the restaurant decided to introduce an advertising campaign to increase daily sales. to determine the effectiveness of the advertising campaign, a sample of 64 days of sales were taken. they found that the average daily sales were $8,080 per day. from past history, the restaurant knew that its population standard deviation is about $1,000. the value of the test statistic is .
Using sample standard deviation formula and the provided sample mean value, The test statistic are $8,080(sample mean) and 125 (sample standard deviation).
What do you mean by statistics?Large-scale numerical data collection and analysis, especially with the aim of extrapolating proportions in the total from those in a representative sample.
What do you mean by population and sample?A population is the entire set of people in a group, whether that group is a country or a collection of people who share a certain trait.
A sample is a condensed, controllable representation of a larger group. It is a subgroup of people with traits from a wider population. When population sizes are too big for the test to include all potential participants or observations, samples are utilized in statistical testing.
Sample mean= $8,080
population standard deviation= $1,000
number of sample=64
sample standard deviation = [tex]\frac {1000}{\sqrt {64}}[/tex]
=1000/8
=125
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Ice cream is packaged in cylindrical gallon tubs. A tub of ice cream has a total surface area of 387.79 square inches.
If the diameter of the tub is 10 inches, what is its height? Use π = 3.14.
The required height of the tub is given as 7.32 inches.
As mentioned in the question, Ice cream is packaged in cylindrical gallon tubs. A tub of ice cream has a total surface area of 387.79 square inches, and the diameter of the tub is 10 inches.
What is surface area?The surface area of any shape is the area of the shape that is faced or the Surface area is the amount of area covering the exterior of a 3D shape.
Here,
The surface area of the cylinder = 2πrh + 2πr²
Substitute the values,
387.79 = 2 × 3.14 × 5 [h + 5]
h = 7.32 inches
Thus, the height of the cylindrical gallon tub is given as 7.32 inches.
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Answer:
7.35 inches
Step-by-step explanation:
I took the test and got it right :)
What is the SAS theorem?
The side-angle-side (SAS) theorem, which states that two sides and an included angle of one triangle are congruent if they are comparable to two sides and an included angle of another triangle, is the first of these theorems.
What is the congruence of triangles?If all three corresponding sides and all three corresponding angles are equal in size, two triangles are said to be congruent.
Slide, twist, flip, and turn these triangles to create an identical appearance.
They are in alignment with one another when moved.
The first such theorem is the side-angle-side (SAS) theorem, which states that two sides and an included angle of one triangle are congruent if they are equivalent to two sides and an included angle of another triangle.
Therefore, the side-angle-side (SAS) theorem, which states that two sides and an included angle of one triangle are congruent if they are comparable to two sides and an included angle of another triangle, is the first of these theorems.
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Find the volume of the solid below. Round your answer to the nearest tenth if necessary.
Width 13 m
Length 17 m
Hight 2m
What’s the volume
Answer: 442
Step-by-step explanation: volume is length x width x height
so plug it in to get 17 x 13 x 2 = 442
Pregunta 2
La recta L3 pasa por la intersección de las rectas L₁ : 2x + 3y - 8 = 0 y L2: 2x 9y+4= 0 y por el
punto (1; 2). Determinar la ecuación de L3.
-
The linear function for Line L3 is given as follows:
y = -2/3x + 8/3.
How to define the linear function?The lines L1 and L2 are given as follows:
L1: y = -2/3x + 8/3.L2: y = -2/9x - 4/9.The x-coordinate of intersection is obtained as follows:
-2/3x + 8/3 = -2/9x - 4/9.
Multiplying everything by 9, the expression is given as follows:
-6x + 24 = -2x - 4.
4x = 28
x = 7.
The y-coordinate is given as follows:
y = -2/3(7) + 8/3 = -2.
Then the points on line L3 are given as follows:
(7,-2) and (1,2).
Given two points, the slope is calculated by the division of the change in y by the change in x, hence:
m = (-2 - 2)/(7 - 1)
m = -2/3.
Then:
y = -2/3x + b
When x = 1, y = 2, then the intercept b is calculated as follows:
2 = -2/3 + b
b = 2 + 2/3
b = 8/3.
Thus:
y = -2/3x + 8/3.
What is the translation?The problem asks for the definition of the line L3, which passes through the intersection of the linear L1 and L2 and through point (1,2).
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(Laws of Exponents with Integer Exponents LC)
Create an equivalent expression for 17−7 • 175.
one over seventeen raised to the second power
one over seventeen raised to the power of negative two
172
−172
One over seventeen raised to the second power is (1/17)².One over seventeen raised to the power of negative two is (1/17)⁻².
Define power and exponents.In mathematics, a base number raised to an exponent is referred to as a power. The base number is the factor that is multiplied by itself, and the exponent indicates how many times the base number has been multiplied. Let's learn more about power and exponent. A power is a phrase that depicts the same component being multiplied repeatedly. For instance, in the number 52, the base is the number 5, and the exponent is the number 2. The base is multiplied by the exponent, which is 2, to get the total number of factors.
Given,
one over seventeen raised to the second power
(1/17)²
one over seventeen raised to the power of negative two
(1/17)⁻²
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What score has a mean of 50 and a standard deviation of 10?
T-scores show how many standard deviation units an examinee's score differs from the mean. Because T-Scores have a mean of 50 and a standard deviation of 10, any T-Score may be directly interpreted.
What is T-score?A t-score (sometimes known as a t-value) is the number of standard deviations from the mean of the t-distribution. The test statistic used in t-tests and regression testing is the t-score. It may also be used to represent how distant an observation is from the mean when the data follows a t-distribution. A t test is a statistical test used to compare two groups' means. It is frequently used in hypothesis testing to assess whether a procedure or treatment has an effect on the population of interest, or whether two groups vary.
Here,
T-scores reflect how many standard deviation units an examinee's score is above or below the mean. Because T-Scores always have a mean of 50 and a standard deviation of 10, any T-Score may be directly interpreted.
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Drag each tile to the correct box.
Arrange the rooms in increasing order of their areas.
bedroom
hallway
drawing
room
kitchen
TV room
The arrangement of the rooms in increasing order of their areas:
Drawing Room = 72m²
Balcony = 87.5 m²
T.V Room = 156m²
Hallway = 216m²
Bedroom = 225m²
Kitchen = 250m²
What is the area of a shape called?
The total space occupied by a flat (2-D) surface or the shape of an object is defined as its area. Draw a square on a piece of paper with a pencil. It is a two-dimensional figure. The area of the shape on the paper is referred to as its Area. Consider your square to be made up of smaller unit squares.
We have,
kitchen:
40 feet × 10 feet
bedroom
15 feet × 15 feet
hallway
15 feet
TV room
12 feet × 13 feet
balcony:
5 feet × 12 feet × 12 feet
drawing room:
8 feet × 13 feet
Areas of the various spaces in the house:
Drawing Room = 72m²
Balcony = 87.5 m²
T.V Room = 156m²
Hallway = 216m²
Bedroom = 225m²
Kitchen = 250m²
Hence, the arrangement of the rooms in increasing order of their areas:
Drawing Room = 72m²
Balcony = 87.5 m²
T.V Room = 156m²
Hallway = 216m²
Bedroom = 225m²
Kitchen = 250m²
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what is the value of y if the slope of the line is 3 and two points on the line is (0,y) and (2,4)
The value of y is -2.
What is coordinate of point?
The coordinates are a pair of numbers that, using the horizontal and vertical lines, precisely pinpoint a point's location on a cartesian plane. typically represented by (x, y), the point's x and y values on a graph. There are two coordinates in every point or ordered pair.
Given points are (0,y) and (2,4).
The formula of slope of a line that passes through the points (x₁, y₁) and (x₂, y₂) is (y₂ - y₁)/(x₂ - x₁).
The slope of the given line is (4 - y)/(2 - 0) = (4 - y)/2.
Again given that the slope of the line is 3.
Therefore,
(4 - y)/2 = 3
Multiply both sides by 2
4 - y = 6
Subtract 4 from both sides:
-y = 2
Multiply both sides by -1:
y = -2
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What are the roots of the quadratic equation 2x² 5x 3?
The roots of the quadratic equation 2x^2 + 5x + 3 are the two values of x that make the equation equal to 0. These two values are x = -3 and x = -1/2.
The roots of a quadratic equation are the two values of x that make the equation equal to 0. To find the roots of the equation 2x^2 + 5x + 3, we need to set the equation equal to 0 and solve for x. We can do this by using the Quadratic Formula, which states that the two roots of a quadratic equation ax^2 + bx + c = 0 are x = [-b +/- sqrt(b^2 - 4ac)] / 2a. In this equation, a = 2, b = 5, and c = 3. We can plug these values into the formula to get x = [-5 +/- sqrt(25 - 24)] / 4. Simplifying this expression gives us x = -3 and x = -1/2, which are the two roots of the equation 2x^2 + 5x + 3.
x = [-5 +/- sqrt(25 - 24)] / 4
x = [-5 +/- sqrt(1)] / 4
x = [-5 +/- 1] / 4
x = -3 and x = -1/2
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Mikaela is completing in a race in which she both runs and rides a bicycle. She runs 5 kilometers in 0.5 hour and rides her bicycle 20 kilometers in 0. 8 hour.
At the rate given, how many kilometers can Mikaela run in 1hour?
At the rate given, how many kilometers can Mikaela bike in 1 hour?
If Mikaela runs for 1 hour and bikes for 1 hour at the rates given, how far will she travel
Answer:
Mikaela run 10 km in 1hour
Mikaela bikes 25km in 1hour
35km If Mikaela runs for 1 hour and bikes for 1 hour at the rates given
Step-by-step explanation:
Let's solve how many km Mikaela runs in 1 hour.
0.5 hour = 30 minutes
5km = 30 minutes
10km = 60 minute
Let's solve how many km Mikaela bikes in 1 hour.
0.8 hour = 48 minutes
20km = 48 minutes
To get from 48 minutes to 60 minutes, we times 1.25. So, we take 20 times 1.25 = 25km
So, Mikaela bikes 25km in 1 hour.
Let's solve how far she traveled If Mikaela runs for 1 hour and bikes for 1 hour at the rates given
10km+ 25km = 35km
Which coordinates BEST represent the y-intercept of the line graphed below? (0, 2) (6, 0) (2, 0) (0, 6)
What is the slope of the equation 4x 2y =- 5?
the slope is 5/-2 so this line "cuts" the y axis at y=-2.50000
y-intercept = 5/-2 = -2.5
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
-2*y-(-4*x+5)=0
Pulling out like terms
Pull out like factors :
-2y + 4x - 5 = -1 • (2y - 4x + 5)
Equation at the end
Equation of a Straight Line
Solve -2y+4x-5 = 0
"y=mx+b" is the formula of a straight line drawn on Cartesian coordinate system in which "y" is the vertical axis and "x" the horizontal axis.
In this formula :
y tells us how far up the line goes
x tells us how far along
m is the Slope or Gradient i.e. how steep the line is
b is the Y-intercept i.e. where the line crosses the Y axis
The X and Y intercepts and the Slope are called the line properties. We shall now graph the line -2y+4x-5 = 0 and calculate its properties
Graph of a Straight Line :
Calculate the Y-Intercept :
Notice that when x = 0 the value of y is 5/-2 so this line "cuts" the y axis at y=-2.50000
y-intercept = 5/-2 = -2.5
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a researcher found that the number of days of school missed per semester by college students was normally distributed with a mean of 4.00 and standard deviation of 1.00. what conclusion can you draw from these data?
With the Application of normal distribution conclusion can be All students missed at least one day of school per semester
what is normal distribution?
The normal distribution is a type of probability function that describes the distribution of a variable's values. Since most of the observations cluster around the middle peak of the curve, it is symmetric. When values of the distribution are far from the mean, the probability for those values narrow off evenly in both directions.
solution:
mean - ( standard deviation ) = 4 - 1 = 3
All students missed at least one day of school per semester
Therefore, conclusion can be All students missed at least one day of school per semester
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Does someone mind helping me with this problem? Thank you!
Answer:
y = - [tex]\frac{1}{4}[/tex] x - 10
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = 4x - 2 ← is in slope- intercept form
with slope m = 4
given a line with slope m then the slope of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{4}[/tex] , then
y = - [tex]\frac{1}{4}[/tex] x + c ← is the partial equation
to find c substitute (4, - 11 ) into the partial equation
- 11 = - [tex]\frac{1}{4}[/tex] (4) + c = - 1 + c ( add 1 to both sides )
- 10 = c
y = - [tex]\frac{1}{4}[/tex] x + (- 10) , that is
y = - [tex]\frac{1}{4}[/tex] x - 10 ← equation of line
A driving service, like Uber or Lyft, charges the following, as modeled in the table, per mile driven.
Miles Driven Cost
0 $10
1 10.70
2 11.40
3 12.10
4 12.80
What is the rate of change/cost per mile driven?
What does the first point (0, 10) represent in real life terms?
Using m to represent miles and C(m) to represent the cost, what equation models the function in the table?
Answer:
The rate of change/cost per mile driven can be calculated by finding the slope of the line that connects the points (1,10.70) and (0,10). The slope is the change in the y-value divided by the change in the x-value, so the slope of the line is (10.70-10)/(1-0) = $0.70/mile.
The point (0, 10) represents the cost of the driving service when 0 miles are driven. In other words, the service costs $10 for no miles driven.
The equation that models the function in the table is C(m) = $10 + $0.70m. The first term represents the cost of the service when no miles are driven and the second term represents the cost per mile driven.
question 8 true/false: outliers should always be removed from the data set prior to final analysis. 1 point false; we only remove outliers if we have very good justification that suggests that removing the outlier is appropriate. true; outliers distort model fit and must be removed to assure reliable results. false; we only remove outliers after checking to make sure doing so drastically improves model fit.
False; we only remove outliers if we have a very good justification that suggests that removing the outlier is appropriate.
You should discard the outlier if it is clear that it resulted from inaccurately measured or recorded data. You may discard the outlier if it has no effect on the results but has an impact on the assumptions. Outliers might occasionally point to a data-gathering error. However, there are situations when they might have an impact on data collection, making them crucial to keep in mind in order to fully comprehend the information. Eliminating outliers gives some of my variables a normal distribution and improves the effectiveness of modifications for the other variables. As a result, it would appear that eliminating outliers before transformation is the best course of action.
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please help me im struggling in math
Corresponding angles theorem states that parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.
To prove m∠ = m∠2.
Then,
m∠3 + m∠2 = 180m∠1 + m∠3 = 180m∠1 = m∠2How to prove corresponding angles?The corresponding angles theorem states that If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent.
Corresponding angles are formed when a transversal passes through two lines.
As we know that line segment m is parallel to the line segment n.
m || n .
Hence,
m∠3 + m∠2 = 180 (same interior angles)
Same side interior angles are two angles that are on the same side of the transversal and on the interior of (between) the two lines.
Same side interior angles are supplementary.
m∠1 + m∠3 = 180(sum of angles on a straight line)
Angles on a straight line is supplementary.
So, by transitive property of equality, we get:
m∠ = m∠2
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Discuss the difference between r and p. Choose the correct answers below. r represents the p represents the sample correlation coefficient thing critical value for the correlation coefficient. population correlation coefficient. Click to select your answer(s) 1 - 35 of 35 Type here to search o te Discuss the difference between r and p. Choose the correct answers below. r represents the p represents the critical value for the correlation coefficient. population correlation coefficient. sample correlation coefficient. Click to select your answers) 1.35 of 35
The difference between r and p. is that r represents the sample correlation coefficient while p represents the p-value
What is the sample correlation coefficient?Generally, r represents the sample correlation coefficient, which is a measure of the strength and direction of the linear relationship between two variables in a sample of data. It ranges from -1 to 1, where -1 represents a perfect negative correlation, 0 represents no correlation, and 1 represents a perfect positive correlation.
p represents the p-value, which is a measure of the statistical significance of the sample correlation coefficient. It represents the probability that the observed correlation occurred by chance, assuming that there is no true correlation in the population.
A p-value of less than 0.05 is often used as a threshold for determining statistical significance, meaning that the observed correlation is unlikely to have occurred by chance and is likely to reflect a true correlation in the population.
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