The following is the probability distribution for calls arrived at a switchboard of one of the leading companies: No. Calls (X) P(X) 0.19 0.32 12 0.22 16 What is the Calls Variance ? (Write your answer to the nearest 2 decimals)

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

A:

Q: Calculate the variance of the following probability distribution: 1 2 f(x) 0.14 0.18 0.25 0.21 0.22…

A: Given, a probability distribution Then ,    mean = Ex = ∑x=04x fx   Variance= Ex2 - Ex2where    Ex2…

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

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: Find the mean, variance, and standard​  ​x​│​ 1​​ 3​​ 6​​10​ deviation of the probability…

A:

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: Given the following probability distribution:      X      P(X)      10    0.3      20    0.1…

A: The average of the sample is defined as the ratio of the sum of the numbers to the total number. By…

Q: For which of the following situations would a binomial distribution not be a reasonable probability…

A: We have given that the statements about to the binomial distribution. Here, need to find out the…

Q: Following is the probability distribution of a random variable that represents the number of…

A: Let X be the random variable which represents the number of students of extracurricular activities…

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: Given: Normal approximation

Q: Derive the formulas for the mean and the varianceof the Poisson distribution by first evaluating…

A:

Q: Calculate the variance of the following probability distribution: -3 -2 -1 1 3 f(x) 0.17 0.14 0.11…

A:

Q: 3. The number of suits sold per day at a department store is shown in the table, with the…

A: The mean of a discrete random variable X is denoted μx or, when no confusion will arise, simply μ.…

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: Given: p=0.61q=1-p=1-0.61=0.39n=68 X=Victims did not know their murderers X~Binomn=68, p=0.61

Q: The following is a Poisson probability distribution with P(x) 0 0.9020 1 0.0835 2 0.0115 3 0.0030…

A: Given: Mean of the Poisson distribution = 0.4 To find : The variance of the distribution.

Q: Ex: The following data represent the number of damaged pieces of spare parts for the production of a…

A: We have given the data about the probability distribution.

Q: Following is the probability distribution of a random variable that represents the number of…

A:

Q: Following Is the probability distribution for age of a student at a certain public high school. 13…

A: Solution

Q: Determine the correlation for the following joint probability distribution 1 1 2 4 3 4 5 7 fw(X.y)…

A: Consider the following table based on given info:

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

A: Solution Let X: number of computers sold X P(X) X•P(X) X-u (X-u)2 (X-u)2•P(X) 0 0.1 0.0 -2. 2…

Q: Find the mean and the variance of the discrete random variable X, whose probability distribution is…

A:

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

A: The formula to calculate mean, variance and standard deviation are :…

Q: The probability distribution of a random variable X is given in the table below: -4 -2 4 .1 P(X = =)…

A: The probability at different values of x is given in the table of problem. The mean or expected…

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: The table below shows the probability distribution of a random variable Y. Y P(Y) 11 0.7 12 0.1 13…

A:

Q: If 5 is mean of a poisson distribution, then the variance is

A: If 5 is mean of a poisson distribution, then the variance is

Q: For the following probability distribution 3 2/5 4 P(x) 1/5 2/5 The population variance is . 0.7 0.9…

A:

Q: Which of the following does not belong to the steps in finding the variance of probability…

A: Variance : A applied mathematics measure of the dispersion between values in an exceedingly…

Q: 3. The number of adults living in homes on a randomly selected city block is described by the…

A:

Q: Ex: The following data represent the number of damaged pieces of spare parts for the production of a…

A: We have given the following  data  for the production of a company and the probability distribution…

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: Given,n=64p=0.6q=1-pq=1-0.6=0.4np=64×0.6=38.4≥5nq=64×0.4=25.6≥5Therefore we can use normal…

Q: The variance of a binomial distribution for which n = 100 and p = 20 is: O 100 80 20 O 16 A Moving…

A:

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

A: To find: 1.mean 2.Variance 3.Standard deviation

Q: The following data are the number of hours spend by a student who plays online games for a week.…

A:

Q: 1. The probabilitythat a cellular phone company kiosk sells Xnumber of new phone contracts per day…

A: Given: X is the number of new phone contracts per day. The distribution of X is x P(X=x) 4 0.4…

Q: Can the following table be a probability distribution? P(x) 0.1758 2 0.0463 0.3103 4. 0.2778 0.0826…

A: We have given that  X 1 2 3 4 5 P(x) 0.1758 0.0463 0.3103 0.2778 0.0826

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: Q8) Find the variance of the following probability * distribution 1 f(x) 0.29 0.12 0.52 0.07 0.6891…

A: From the provided information, The probability distribution table is as follow: X 1 2 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: I solved exactly first question because of bartleby policy if you want more please uplode…

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: From the provided information, 60% of people who are murdered actually knew the person who committed…

Q: 3. The number of suits sold per day at a department store is shown in the table, with the…

A: Given data, X P(X=x) 19 0.2 20 0.2 21 0.3 22 0.2 23 0.1

Q: The following is the probability distribution of the number of accidents in one day. x 7 8 9 10 11…

A: As per our guidelines we are suppose to answer three sub parts. X 7 8 9 10 11 12 P(X=x) 0.13…

Q: Find the mean of the following probability distribution? * P(x) 0 0.1605 1 0.2848 2 0.0206 3 0.2536…

A: The mean of the probability distribution is given by: EX=∑ixipi

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A:

Q: Consider the following probability distribution function of X and Y: 1 2 0.35 0.05 Y 0.15 0.45 Find…

A:

Q: In the following problem, check that it is appropriate to use the normal approximation to the…

A: Note: Thank you for the question. Since multiple questions are posted, according to our policy, we…

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

A: Solution

Q: 4.The following table contains the probability distribution of the number of traffic accidents daily…

A: The data are given,

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

A: