3. The number of adults living in homes on a randomly selected city block is described by the following probability distribution: No. of adults, X 1 3 4 P(X = x) 0.12 0.42 0.31 0.15 What is the variance of this distribution?

Q: 5) Given below is a bivariate distribution for the random variables x and y. f(x, y) x y 0.2 50…

A: Obtain the mean of x and mean of y:The mean of x is, sum(xf(x.y) =E(x)=37 and mean of y is,…

Q: The distribution of the number of chocolate chips (x) in a cookie is shown in the following table. 2…

A:

Q: 1. A shopping mall estimates the probability distribution of the number of stores mall customers…

A:

Q: Find the variance for a given probability distribution. x: 0, 22, 4, 6 p(x): 0.05, 0.17, 0.43, 0.35

A: Given: Probability distribution. The variance is obtained as below:…

Q: If   n =41  and    p=0.6  then the variance of the binomial distribution is

A: X~B(n,p)P(X=x)=nxpx(1-p)n-x                     x=0,1,2,3,...,nE(x)=mean=npvariance=np(1-p)

Q: 1. The probability distribution of customers per day at a fastfood chain is shown here. Find the…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 11 12 i . Find the mean, variance, and standard deviation of the probability distribution developed…

A: X has Poisson distribution with mean 3.2. Mean = λ = 3.2 We have to find, a) P(none). b) Construct…

Q: Suppose Y follows binomial distribution with n-15. If the variance of X is 3.6, what are the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: I. Find the variance and standard deviation of each probability distribution below. 1. 2 3 P(X) 0.1…

A: As per Bartleby guideline expert have to answer first question only dear student please upload other…

Q: Suppose X~B(n=3 ; P=2/3). Use the binomial distribution formula to compute the following: The…

A: Given information X ~ B(N=3,p = 2/3) In Binomial Distribution Variance is given by So, Option b is…

Q: Question 4: The H2 Hummer limousine has eight tires on it. A fleet of 1300 H2 limos was fit with a…

A:

Q: If the mean of the Poisson distribution is 2, then the variance is .A 2 (1 – 22) .B 1 .C .D

A: Let X be a random variable following the Poisson distribution with the parameter λ. The probability…

Q: 1. Does each of the following tables represent a probability distribution? Explain why or why not.…

A: Given that : Random variable x and their pdf  is given .  By using the properties of probability…

Q: 2. The random variable X, representing the number of cherries in a cherry puff, has the following…

A: Probability distribution

Q: A researcher studying public opinion of proposed Social Security changes obtains a simple random…

A: Given that n =30 and p=0.20.

Q: 1. The random variable X, representing the number of defective missiles when 3 missiles are fired,…

A: Introduction: The random variable X represents the number of defective missiles on firing 3…

Q: If the mean of the following probability distribution is 3.44, what is the variance? 3 4 P(X=x) 0.23…

A: We have to find the variance of the probability distribution.

Q: Your company, Sonic Video, Inc., has conducted research that shows the probability distribution,…

A: As per our guidelines we are suppose to do only first question

Q: 10. The random variable X, representing the number of chocolate chips in a cookie, has the following…

A:

Q: Q.2 Following table represents a probability distribution. -5 9. P(X = x) = P,(x) 0.5 0.25 0.25 (1)…

A: The probability distribution is, X -5 6 9 P(X=x) 0.5 0.25 0.25

Q: If X represents a random variable coming from a normal distribution with mean 4 and if P(X > 5.1) =…

A:

Q: If X represents a random variable coming from a normal distribution and P(X 6.5) = 0.59. True O…

A: It is given that P(X<6.5)=0.41.

Q: The number of telephone calls arriving at an exchange during any given minute between noon and 1:00…

A: Consider the table:

Q: Answer each of the following problems. 1. The numbers of cars sold per day at a local car…

A:

Q: in a binomial distribution, if n= 4 and p = 1/3 then the value of variance is?

A: Given:     n = 4 probability of success (p) = 1/3

Q: If X represents a random variable coming from a normal distribution with mean 5 and if P(X> 6) = 0.4…

A: The mean is 5.

Q: 6. If x~N(H, o2), which of the following is true about the distribution of x? A. The mean of x > x…

A:

Q: If the mean of the following probability distribution is 3.44, what is the variance? 4 P(X=x) 0.23…

A: Given data is Mean = 3.44 x 2 3 4 5 P(X=x) 0.23 0.37 0.13 0.27

Q: The number of jackets sold per week at a boutique shop is shown in the table, with the corresponding…

A: Given: Probability distribution table for number of jackets sold per week. The mean is obtained as…

Q: Example # 2: The heights if a group of boys are normally distributed with a mean of 54 inches and…

A: Given :  Mean = μ = 54 Standard deviation  = σ = 2.5

Q: The following is the probability distribution for calls arived at a switchboard of one of the…

A: Given that Let X denotes the number of calls and P(X ) is the probability corresponding to X  We…

Q: 1 (a) The Monthly expenditure of family is normally distributed with mean riyals 100 and variance…

A: 1)Given data,μ=100σ2=64σ=8

Q: Solve the following problems. 1. The random variable x represents the number of people you meet on…

A: Given data is  x 0 1 2 3 4 P(x) 0.02 0.18 0.30 0.40 0.10

Q: QUESTION 1 What is the Variance for the following discrete probability distribution? P(X) 0.14 0.71…

A: Formula : variance :

Q: 1. What are the coefficients of variation of the following two distributions? Which distribution is…

A: Expected loss=Sum(probability*loss) A=0.30*10000+0.65*30000+0.05*200000=32500…

Q: 24/4:The following data represent the number of damaged pieces of spare parts for the production of…

A:

Q: The number of adults living in homes on a randomly selected city block is described by the following…

A: Formula Used: Standard deviation σ = SD(x) =  Var(x) Where, Var(x) = variance of x Var(x) =…

Q: If the mean of the following probability distribution is 3.44, what is the variance? 3 4 P(X=x) 0.23…

A: I solved exactly first question because of bartleby policy if you want more please uplode…

Q: 1 2 3 4 P(X) 0.15 0.25 0.30 0.20 0.10 a) Find the mean and standard deviation of the number of hours…

A:

Q: Q.2 Following table represents a probability distribution. -5 6 9 P(X = x) = P;(x) 0.25 0.5 0.25 @…

A: Given

Q: QUESTION 2 А. The table below shows the probability distribution of the likelihood of the number of…

A: Note: Since you have posted questions with multiple subparts we will solve the first three questions…

Q: If the mean of the following probability distribution is 3.44, what is the variance? 3 4 5 P(X=x)…

A: Given : The mean of the probability distribution is 3.44

Q: 12. The following table lists the probability distribution for cash prizes in a lottery conducted at…

A: Given Information: The table lists the probability distribution for cash prizes in a lottery…

Q: 6. Consider the following probability distribution of the discrete random variable x. 14 28 42 56…

A:

Q: Find the mean and variance of the following discrete random variable distribution. ?    ?(?) 0…

A:

Q: The number of computers sold per day at a local computer store, along with its corresponding…

A: Solution

Q: 1. Complete the table below by finding the variance and standard deviation of the following…

A: