I In a large survey, 1st graders were asked what their favorite color is. The probability that a first grader chose blue is 24%. If 8 students are randomly selected, what is the probability that exactly 2 students say blue

Answers

Answer 1

The probability that exactly 2 students say blue is their favourite colour is 0.3108.

What is Binomial DIstribution?

The binomial distribution with parameters n and p in probability theory and statistics is the discrete probability distribution of the number of successes in a series of n independent experiments, each asking a yes-or-no question and having its own Boolean-valued outcome: success (with probability p) or failure (with probability q = 1-p). A single trial or experiment that results in success or failure is known as a Bernoulli experiment, and a series of results is known as a Bernoulli process.The Binomial Distribution Formula is given as, [tex]P(X=k)= ^{n} C_{k}(p)^{k} (1-p)^{n-k}[/tex]

Here, the probability that the first grader chose blue is 24%.

[tex]\implies p=0.24[/tex]

The number of students randomly selected is 8.

[tex]\implies n=8[/tex]

So, the probability that exactly 2 students say blue is,

[tex]P(X=2)= ^{8} C_{2}(0.24)^{2} (1-0.24)^{8-2}\\\implies P(X=2)=28 \times 0.0576 \times (0.76)^{6} \\\implies P(X=2)=0.3108[/tex]

Thus, the probability that exactly 2 students say blue is 0.3108.

To learn more about Binomial DIstribution from the given link

https://brainly.com/question/9325204

#SPJ4


Related Questions

What happens if I fail science in highschool but do well in my other classes? Will I be able to graduate? How will it affect me?

Answers

You should do summer school. If you fail science class you will have to re do it and it will affect by you having to re take the class
Usually depends on the Highschool but i’m sure they’d make u retake it because they’d like u to have enough credits in all the subjects. You can still graduate just do it during summer school or if your school offers a credit recovery opportunity take that. You won’t be affected much as long as you stay on top of it before your senior year (if you are a senior this year you’ll still graduate just later than others if u don’t make it up during the year)

Write an expression for the distance vector, d, in rectangular form in terms of d and θ, in a coordinate system with the dish at the origin and the unit vectors i and j in the horizontal and vertical directions. (to the right and up)

Answers

d = d * (cos θ * i + sin θ * j) is an expression for the distance vector, d, in rectangular form in terms of d and θ, at the origin and the unit vectors i and j in the horizontal and vertical directions.

What is vector?
A vector is a mathematical object used to represent a quantity with both a magnitude and a direction. Vectors can be used to represent physical quantities such as forces, velocities, and accelerations. They can also be used to represent mathematical operations such as addition and subtraction. Vectors can be represented graphically by drawn arrows, with the length of the arrow representing the magnitude and the direction of the arrow representing the direction. Vectors can also be represented mathematically as a combination of components in a given coordinate system, with each component representing a different direction. Vectors can be added together to create a resultant vector, and can be used to represent the result of any mathematical operation with two or more vectors.

To learn more about vector

https://brainly.com/question/25705666

#SPJ4

The momentum of an object is determined to be 7. 2 × 10-3 kg⋅m/s. Express this quantity as provided or use any equivalent unit. (note: 1 kg = 1000 g )

Answers

The momentum of the object when expressed using the equivalent units is determined to be 720 g-cm/s.

What are Equivalent Units?

The amount of work put into a specific quantity of physical goods is measured in equivalent units. You may easily determine equivalent units by multiplying the quantity of physical goods by the amount of work done on them.In order to determine them, the number of physical (or actual) units on hand is multiplied by the units' completion rate.

In the given question, momentum, [tex]p=7.2 \times 10^{-3}[/tex] kg-m/s

Here, the momentum is expressed in SI units.

Now, we can convert the units of momentum into CGS system using the following equivalent units.

1 kg = 1000 g and 1 m = 100 cm

So, we get the momentum as,

[tex]p=7.2 \times 10^{-3} \times 1000 \times 100[/tex] g-cm/s

[tex]\implies 7.2 \times 10^{2}[/tex] g-cm/s

[tex]\implies p=720[/tex] g-cm/s

Hence, the  momentum of the object when expressed using the equivalent units is 720 g-cm/s.

To learn more about Equivalent Units from the given link

https://brainly.com/question/24214260

#SPJ4

What rule describes the rotation about the origin?

(x, y) →

How many degrees was the figure rotated about the origin?


°

Answers

It means that the coordinates of the point were translated using the formula (x, y) since the point rotated at an angle of 180°. (-x, -y). As a result, the necessary rule that characterises the rotation about the origin is as follows: (-x, -y). Example of a 180 degree rotation when rotating a figure about its origin.

What is rotation ?

The circular movement of an object about a primary axis is referred to as rotation or spin. A revolving object in two dimensions only has one conceivable central axis and can revolve either clockwise or anticlockwise. There are countless conceivable central axes and rotating orientations for a three-dimensional object.

Here are the guidelines for rotation: rotation in the direction of 90°: (x,y) becomes (y,-x) rotation of (x,y) at 90 degrees anticlockwise results in (-y,x) Rotating (x, y) 180 degrees both clockwise and anticlockwise results in (-x,-y)

Thus, the necessary rule that characterises the rotation about the origin is as follows: (-x, -y).

To learn more about the rotation, follow the link;

https://brainly.com/question/1571997

#SPJ1

Answer: 1. -x,-y

2. 180

Explanation:edge

What is the complementary messenger-rna sequence for the dna sequence c-a-a-g-g-t?

Answers

Answer:

The complementary messenger-RNA sequence for the DNA sequence C-A-A-G-G-T is G-U-U-C-C-A.

This is because messenger-RNA is created by a process of transcription in which the complementary base is matched to each side of the DNA sequence.

In this case, the base C is matched with G, A is matched with U, and G is matched with C. Therefore, the complementary messenger-RNA sequence is G-U-U-C-C-A.

if you switch the locations of the parent genotypes around the Punnett square, does it affect the potential genotypes of their offspring?

Answers

If you switch the locations of the parent genotypes around the Punnett square, it would not affect the potential genotypes of their offspring.

What is a Punnett square?

A Punnett square may be characterized as a type of table that allows you to determine the expected percentages of different genotypes in the offspring of two parents. It allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes.

The potential genotypes of their offspring would not be affected when you switch the locations of the parent genotypes around the Punnett square. This is because the genotypes of the offspring are formed by the random and systematic segregation of their alleles with respect to their genes.

Therefore, if you switch the locations of the parent genotypes around the Punnett square, it would not affect the potential genotypes of their offspring.

To learn more about Punnett square, refer to the link:

https://brainly.com/question/3522181

#SPJ1

Megan Finder, a recent college graduate, is applying for her first credit card. The creditor has asked for a personal net worth statement. Megan owns a scooter worth $2,000. 00 and has $800. 00 in her checking account. She owes Jaycee Auto $920. 00 and River College $125. 0. Complete a net worth statement for Megan Finder. Select Current Date in the appropriate field. Assets should be listed in order of liquidity, so Cash should be listed first. Liabilities should be reported in alphabetic order

Answers

Answer:

Explanation:

Given assets are scooter worth $2000, $800 in her checking account.

So total assets = 2000+800 = $2800

And liabilities are which are owed that is $920 and $125.

So total liabilities = 920+125 = $1045

Net worthy = 2800-1045 = $1755

About liability

A liability is an obligation owned by a person or company that must be paid based on a certain period, usually based on the value of money. But besides money, liabilities can be in the form of obligations in the form of services, goods, or other economic benefits. In recording the balance sheet, liabilities will be recorded on the right or opposite to assets.

In the accounting equation then abbreviated as ALE which consists of assets, liabilities and equity.

The formula, assets = debt + capital.

Some examples of liabilities are debts, loans, mortgages, deferred income, bonds, guarantees, and other accrued expenses.

Learn more about liability at

https://brainly.com/question/18484315

#SPJ1

A stationary block has a charge of +6. 0×10−8 c. A 0. 80-kg cart with a charge of +4. 0×10−8 c is initially at rest and separated from the block by 0. 4 m. The cart is released and moves along a frictionless surface to a distance of 1. 0 m from the block. Consider the objects as point charges

Answers

The electrostatic force between the block and the cart is -2.1x10^-5 N and the electrostatic potential energy between the block and the cart along a frictionless surface is -1.4x10^-7 J.

What is frictionless surface?
A frictionless surface is a surface that does not experience any friction when an object moves across it. The concept of a frictionless surface is important in physics and engineering, as it helps to explain the behavior of objects in motion. Frictionless surfaces are found in many everyday objects, from the ice on a hockey rink to the wheels on a race car. The frictionless surface allows objects to move quickly and easily across it, resulting in less energy being lost in the process. Frictionless surfaces are also important in the field of nanotechnology, as they allow nanorobots to move quickly and efficiently.

To learn more about  frictionless surface
https://brainly.com/question/27414902

#SPJ4

identify various limiting factors (abiotic and biotic) in an ecosystem

Answers

Answer:

Explanation:

In ecology, biotic and abiotic factors make up an ecosystem. Biotic factors are the living parts of the ecosystem, such as plants, animals, and bacteria. Abiotic factors are the nonliving parts of the environment, such as air, minerals, temperature, and sunlight. Organisms require both biotic and abiotic factors to survive. Also, a deficit or abundance of either component can limit other factors and influence an organism's survival. The nitrogen, phosphorus, water, and carbon cycles have both biotic and abiotic components.

Answer:

Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. The way these components interact is critical in an ecosystem. Thus, organisms tend to compete for their limited availability in the ecosystem. Different limiting factors affect the ecosystem. They are (1) keystone species, (2) predators, (3) energy, (4) available space, and (5) food supply. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource.

Mark brainiest

Other Questions
If Treasury bills are currently paying 5.75 percent and the inflation rate is 2.8 percent, what is the approximate and the exact real rate of interest On one day at a local minigolf course, there were 320 customers who paid a total of $2,900. If the cost for a child is $7 per game and the cost for an adult is $10 per game, write a system of equations to model this scenario, where x represents the number of children and y represents the number of adults who played that day. 7x + 10y = 2900x + y = 320 7x + 10y = 320 x + y = 2900 10x + 7y = 2900x + y = 320 10x + 7y = 320x + y = 2900Brainiest for correct answer Multiply: 1) (5xy+3yz) and 2xz 2) 6/7x2y and (35/6xy + 14/3 xy2 3) (2x3-3x2+6x-8) and (-5x2) DIRECTIONS: Read the passage below. Then, answer the questions that follow.The hikers gathered around the campfire, enjoying the warm evening, thebright fire, and the companionship of friends, new and old. Stories of the daywere exchanged. As the sky got darker, the stories turned to past adventures.A quiet man started to speak.It was spring, a clear evening, when I thought it might be my last evening.Behind me I heard a shuffling and the breaking of twigs. Suddenly, thebushes parted and a huge wolf entered the clearing.1. Underline the sentence when the interior story starts. Explain your answer.2. What is one description of the storyteller that you might not know in a different textstructure? Dramatic increases in global grain production since 1950 have been made possible by * substantial increases in the amount of land under cultivation global warming an increase in the urban workforce an increase in the agricultural workforce O an increase in the use of energy and technology A convenience store sell pre-paid mobile phones. It purchases them for $12 each and uses a mark up rate of 250%. a. The markup rate is the constant of proportionality in the equation y= kx. Write an equation that can be used to find the amount of markup on the cost x of a phone b. Use the equation to calculate the markup amount. What is the retail price of a phone? c. Next week the store is going to reduce the price to $31. 50. Calculate what percent the sale price is of the retail price. d. Based on your answer to part C, what is an equation in the form y = kx that relates the sale price to the retail price x? The following nuclei are observed to decay by emitting an particle: 21284Po and 23994Pu.Part AWrite out the decay process for 21284Po.Express your answer as a nuclear equation.Part BDetermine the energy released in this reaction. Be sure to take into account the mass of the electrons associated with the neutral atoms.Express your answer using three significant figures.E =MeVPart CWrite out the decay process for 23994Pu.Express your answer as a nuclear equation.Part DDetermine the energy released in this reaction.Express your answer using three significant figures.E =MeV Find the general solution of the given system. dx/dt = 4x+ 5y dy/dt = 10x + 9y(x(t), y(t)) = Explain how you decided to divide your wholes into fractional parts and how you decided where your number scale should begin and end. Due 1-2-23 what rose in both Britain and France as a result of the hundred year war Which of the following statements istrue?The formation of the TetonMountains over the last 10 millionyears represents a rather largesegment of geologic time whenlooking at the Rocky Mountain rangeas whole.The formation of the TetonMountains over the last 10 millionyears represents a rather smallsegment of geologic time whenlooking at the Rocky Mountain rangeas whole.Over the next 100 million years, theTetons will likely continue to growdue to continued uplift as the resultof continental drift.Over the next 100 million years, theTetons will likely continue to growdue to continued uplift as the resultof plate tectonics. 142What are the relative masses of a proton, neutronand electron, given that a proton has a mass of 1?How many protons, neutrons and electrons arethere in an atom of phosphorus, which has a protonnumber of 15 and a mass number of 31?3Explain the terms atom and element, and includea clear description of the relationship between thetwo terms.Explain why neutrons are important in making thenucleus of an atom stable. You need to consider thecharges on the different subatomic particles present. What are 7 healthy lifestyles? Tyler has a baseball bat that weighs 28 ounces. Find the weight in kilograms and in grams. (Note: 1 kilogram=35 ounces) 9) The dog pen at doggy daycare has a length of 29 feet and a width of 18 feet.What is the area of the dog pen?__What is the perimeter of the dog pen?_ How is the setting from Ovid's Pyramus and Thisbe similar to Romeo and Juliet both take place in servants quarters? A meteorologist set up rain gauges at various locations around a city and recorded the rainfall amounts in the table below. Use data in the table to create a line plot using 1/8 inches. Whats 36/6 as a whole number? Choose all that apply - what are some problems associated with therelease of extra carbon dioxide?killing coralsdying forestsglobal warmingfamine for peopledroughts Shakespeare transforms plutharchs historical account by