Ramiro did a survey of the number of pets owned by his classmates, with the following result
What was the mean Deviation of the number of pets?
A-1.02
B-1.053
C-1.087
D-1.12
Answers
The mean deviation of the number of pets Ramiro surveyed as shown in the table attached below is: D. 1.12
To find the mean deviation of the number of pets, the following steps would be taken:
Find the mean, which is sum of each frequency and score (fx) divided by the total number of pets. [tex]\mathbf{(\frac{\sum fx}{n} )}[/tex]Subtract the mean from each score, [tex]\mathbf{( x - \bar x)}[/tex]Sum the deviations together and divide by total number of pets.The formula for the mean deviation is given as: [tex]\mathbf{\frac{\sum f* |x - \bar x|}{n} }[/tex]Mean deviation as solved in the table attached in the image below would be:
[tex]\mathbf{\frac{33.6}{30} = 1.12}[/tex]
Therefore, the mean deviation of the number of pets Ramiro surveyed as shown in the table attached below is: D. 1.12
Learn more here:
https://brainly.com/question/24185612
Related Questions
PLEASE PUT A REAL ANSWER
this is my 3rd time putting this Noah is NOT right
Answers
Answer:
5. Noah and Diego has the same amount of money which is $7.5
Step-by-step explanation:
Noah=75% of $10
75÷100×10=7.5
Noah has $7.5
Diego=25% of $30
25÷100×30=7.5
Diego=$7.5
Therefore Noah and Diego has the same amount of money
Answer:
Can I please have Brainliest I want to level up
Step-by-step explanation:
A river current carried a fallen tree branch 1 over 3 of a mile in 1 over 4 of an hour. At what speed is the water in the river flowing, in miles per hour?
Answers
In miles per hour, 4/3 speed represents the flow of water in the river, and its calculation can be defined as follows:
Speed calculation:Distance = [tex]\frac{1}{3}[/tex] miles
Time= [tex]\frac{1}{4}[/tex] hours
speed=?
Speed Definition:
An object's speed is indeed the pace at which it moves along a path in time, whereas its velocity is the rate and direction of travel.
The formula for calculating the speed:
[tex]\to[/tex] speed =[tex]\bold{\frac{Distance}{time}}[/tex]
[tex]=\frac{\frac{1}{3}}{\frac{1}{4}}\\\\={\frac{1}{3} \times \frac{4}{1}}\\\\={\frac{4}{3}}\\\\[/tex]
Therefore, the calculated speed of water flow is [tex]\frac{4}{3}[/tex] miles per hour.
Find out more about the speed calculation here:
brainly.com/question/26822909
[PICTURE ATTACHED]
another one of these science questions, idk what category to put it into.
is this correct?
Answers
To celebrate getting a new car, Johnny went out to eat with 3 friends. Their meal, including tax, was $75. If they left a 15% tip, what is the cost of their total bill with the tip included?
Answers
Answer:
$86.25
Step-by-step explanation:
15% as a fraction and multiply that by 75 and then add that to 75.
Neil measures the lengths of some objects in both yards and feet.
There is a proportional relationship between the number of yards, x, and the number of feet, y.
x (yards) y (feet)
1 3
2 6
3 9
6 18
What is the constant of proportionality? Write your answer as a whole number or decimal.
Answers
The constant of proportionality(k) between a yard and a foot is 0.33.
What are ratio and proportion?A ratio is a comparison between two similar quantities in simplest form.
Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
The variable feet and yards are in direct proportion.
Let,
yard = k(feet).
1 = 3k
k = 1/3 = 0.33.
learn more about proportion here :
https://brainly.com/question/7096655
#SPJ2
Will mark brainliest for having the steps.
prove tan(2x) = tan(x+x)
Answers
LS = 2(tanx−cotx)
------------------
tan^2−cot^2x
= 2(tanx−cotx)
----------------------
(tanx−cotx)(tanx+cotx)
= 2
-------------------
(tanx+cotx)
= 2
-----------------
Sin2x+cos2x
---------------- sinxcosx
= 2
-------------
1
------------
sinxcosx
= 2sinxcosx
= sin2x
I hope that is the answer that you are looking for. Let me know if you need more help next time. Thanks for posting your question here in brainly!
tan(2x)=tan(x+x)
tan(x+x)
tan(x)+tan(x)/1-tan(x)tan(x)
2tan(x)/1-tan(x)^2
tan(2x)
tan(2x)=tan(x+x) is True.
good morning mates how is your day planned
Answers
Answer:
boring and stuck in school
Step-by-step explanation:
Answer:
Good morning!
Step-by-step explanation:
A watch cost $76.00. If the sales tax rate is 7% what is the amount of sales tax? What is the total cost?
Answers
Answer:
Multiply the cost of an item or service by the sales tax in order to find out the total cost. The equation looks like this: Item or service cost x sales tax (in decimal form) = total sales tax. Add the total sales tax to the Item or service cost to get your total cost.
Step-by-step explanation:
76 times .07 is 5.32 and 5.32 plus 76 is 81.32.
Based on the amount of detail the author gives to the dog’s thoughts, what can you infer is the biggest difference between the main character and the husky? How do their attitudes differ towards the setting of this story? Make sure to explain your reasoning.
Answers
1.The ratio of males to total students in a mathematics class is 12 to 30. What fraction of the class is male?
40/10
6/10
12/30
2/50
The ratio of males to total students in a mathematics class is 3 to 30. What percent of the class is male?
40%
10%
45%
12%
Answers
Answer: 12/30
and 40 percent
Step-by-step explanation:
Well it’s 12 to 30 so just put a fraction bar
and 12 divided by 30 is .4
Answer:
The answers are 12/30 and 10%
Step-by-step explanation:
It's 40% because the ratio of males to total students is 12 to 30, or 12:30, which is equal to 12/30.
The other answer is 10% because the ratio of males to total students is 3 to 30, or 3:30, which is equal to 1/10. Then you would do 100 divided by 10 which would give you 10 so it's 10%.
Hope this helps!
Please help. If you don't know the answer please don't resond. It's not funny and it doesn't help either.
Answers
Answer:
1.5
Step-by-step explanation:
Answer:
slope=1/2 and y-interception=3
Step-by-step explanation:
mx+b where m is the slope and y- inersception is b
DUE SOON PLS HELP: All of the points on the picture are on the same line. 1. Find the slope of the line. Explain your reasoning.
(if possible can you link a video to help I don't understand this at all)
Answers
Answer:
Look below :)
Step-by-step explanation:
1. To find the slope of a line, we can use this expression: [tex]\frac{y2 - y1}{x2 - x1}[/tex]
In order to use that expression, we need to use two points. The graph given only provides you with two complete points, so we'll use those.
(4, 4) = (x1, y1) (12, 20) = (x2, y2)
Now we can input the values into the expression:
[tex]\frac{y2 - y1}{x2 - x1}[/tex] = [tex]\frac{20 - 4}{12 - 4}[/tex]
Let's solve for the slope:
20 - 4 = 16
12 - 4 = 8
[tex]\frac{16}{8}[/tex]
To simplify 16/8 divide both the numerator and the denominator by 8:
16/8 = 2
8 = 1
You get 2/1 or just 2.
The slope of the line is 2.
2. To make an equation for the line, we'll use slope-intercept form, which is y = mx + b, where m is the slope and b is the y-intercept. We already know the value of the slope is 2, so now we need to find the y-intercept. We can find the y-intercept using a given point and the slope. In this example, I'll use the point (4, 4). Let's input the values into the equation:
y = mx + b
4 = 2(4) + b
Now let's solve for b:
4 = 8 + b
Subtract 8 from both sides to isolate the b:
4 - 8 = 8 - 8 + b
-4 = b
The y-intercept of the equation is -4.
Now that we know the values for the slope and y-intercept, we can write the equation:
y = 2x - 4
3. To find the values of a and b, we can use the equation we made in the previous question.
First we'll find a:
The point we are given is (a, 16). We know the y-value is 16, so we can put that into our equation. We can also replace x with a:
y = 2x - 4
16 = 2a - 4
Now we can solve for a:
First, add 4 to both sides to isolate the 2a:
16 + 4 = 2a - 4 + 4
20 = 2a
Then divide both sides by 2 to isolate a:
20/2 = 2a/2
10 = a
The value of a is 10.
Now let's find b:
This is similar to finding a. The point we are given is (8, b). We know the value of x is 8, and we can replace y with b in the equation:
y = 2x - 4
b = 2(8) - 4
Let's solve:
b = 2(8) - 4
b = 16 - 4
b = 12
The value of b is 12.
4. Finally, to find the y- coordinate when x=0, all we have to do is input 0 in for x in the equation and then solve for y:
y = 2x - 4
y = 2(0) - 4
y = 0 - 4
y = -4
When x = 0, y = -4.
The answer for what the y-coordinate is when x = 0 will always be the value of the y-intercept.
I hope this helps!
Can i get the right answers please
Answers
Answer: For the first question, m = 1.5 and y-intercept = 5, so your equation for the first one should be, y = 1.5x + 5.
And for the second question, m = -1.75 and y-intercept = 4, so your equation for the second one should be, y = -1.75x + 4.
Step-by-step explanation: For the 1st one, subtract 3x to get -2y = -3x - 10, then divide by -2 to get y = 1.5x + 5.
For the 2nd one, subtract 7x to get 4y = -7x + 16, then divide by 4 to get y = -1.75x + 4.
Hope this helps you! :)
What's 9 + 10????????????
Answers
Answer:
19
Step-by-step explanation:
i aint never seen two pretty best friends its always one of em gotta be ugly
Answer:
21 duh
thats basic math
Graph the system of equations on graph paper.
{4x+3y=122x+3y=−6
Which statements are true about the solution to the system of equations?
Select each correct answer.
The y-coordinate of the solution is 9.
The ordered pair that is the solution to the system lies in Quadrant I.
The ordered pair that is the solution to the system lies in Quadrant IV.
The x-coordinate of the solution is 9.
The y-coordinate of the solution is −8.
The x-coordinate of the solution is 8.
Answers
Answer:
A C D
Step-by-step explanation:
plz help me 20 point
Answers
Answer:
yes
Step-by-step explanation:because train a reaches a higher distance in a faster rate
Answer:
im only doing this for the points sorry :/
Step-by-step explanation:
write the equation for this line
Answers
Answer:
y = 4x + 3
Step-by-step explanation:
ASAP Which answer choice shows 6.009 written in expanded form?
A. 6 + 0.9
B. 6 + 0.09
C. 6 + 0.009
D. 6 + 0.0009
Answers
The answer issssssss C
Hello how are you? Tell me in an answer for 100 points
Answers
Answer:
Hiiiii
I'm okay, how about you?
thanks for the free points! :)
What is the solution to the equation One-fourth x + 2 = negative StartFraction 5 Over 8 EndFraction x minus 5?
Answers
Answer: 7/8x - 7
Step-by-step explanation:
1/4x +2 = -5/8x - 5
Let me know if this is right
Write an equation for the following graph. Keep your slope as a fraction.
Answers
Answer:
y= 10/3x + 20
Step-by-step explanation:
the slope is 10/3 because from one point to another (on the line) it moves up 10 (from 20 to 30) and to the right 3 (from 0 to 3)
the y intercept is 20 because when x = 0, y = 20 which we can see on the graph
Answer:
y=10/3x +20
im too late to be first again :(
Please estimate 0.8 X 22.
Answers
Answer:
22
Step-by-step explanation:
0.8 --> 1 * 22 = 22
Hope this helped! Have a nice day!
Reflect on your participation in course discussions. Evaluate how well you explain your thinking and how well you respond to other people’s ideas about math. How can you improve in these areas? can you reword this pls
Answers
Answer:
Think back on your contributions in our class discussions. Asses your explanations of your thoughts and your reactions to other people's input about the subject. How could you build off of these evaluations?
Step-by-step explanation:
Answer:
Step-by-step explanation:
See how you can find your course of discussion. open your mind to see how you explain your thinking and how good you open your mind to other people's ideas about math. how can you help your self improve the mistakes.
there you go hope it helps.
HELP!!
Complete the ratio table.
13 15
26 _
45 _
60 _
65 75
Answers
Answer:
30,52,69
Step-by-step explanation:
henry is making a corn grits recipe that calls for 1/4 cup of corn grits for every 1/2 cup of water. how much water will he need if he uses 1 1/2 cup of corn grits?
Answers
Answer:
3 cups of water could I get brainlisted?
Topic 4 Pythagorean Theorem
Find each missing length to the nearest tenth.
Answers
13--------
14----------
15---------
16-------------
17-------
18---------
19-------
20-------
21------
22----------
Answers
write an equation for the line in slope-intercept form. Numbers may be used once, more than once, or not at all.
Graph of a diagonal line with x-axis and y-axis. A line is passing through co-ordinates (0,5) and (2,-3).
choices- -4, -2, 0, 2, 3, 5, 6
y =____ x + ____
Answers
Answer:
are you my dad!
Step-by-step explanation:
Write a story/word problem for the expression "3 divided by 1/2" or "1/2 divided by 3"
Answers
Answer:
You have 3 cookies and need to divide them between you and a friend.
Step-by-step explanation:
Answer:
3 div 1/2 or 1/2 div 3 = 1.5 or 1.50
Step-by-step explanation:
dsffsgfduntydgfjghfu,dryfujyftmhgjghjg,kgytugjhyghkbgk
yeahNeed helpp fastt plss will give brainliest to who is correct plss helpp
Answers
Answer:
4
Step-by-step explanation:
i'm pretty sure because the original answer is 3.31 but i'm guessing if you round that you get 4...?(sorry if not helpful)
simplify by combining like terms: 1.52c + 3.12c
Answers
Answer:
4.64c
Step-by-step explanation:
Step-by-step explanation:
=1.52c+3.12c
=4.64c
hope it help u.