For the discrete probability distribution. 3 4. 6. 7 k 2k 2k 3k 2k2 7k + k Find the variance.

Q: The table below shows the respective probabilities that a number of power failures will strike a…

A: Answer Given,E[x] = 1.3Z = 7x + 2

Q: Suppose the joint probability distribution of the random variables X and Y is stated as follows: Y…

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Q: is a computer-consulting firm. The number of new clients that it has obtained each month has ranged…

A: here no. of new clients and their probability is given we have to find out the variance for the…

Q: and X, be independent normally distributed random variables. X,has a normal distribution with mean 1…

A: Introduction - Z-score  z=x-μσwhere , μ=population mean x=score σ=standard deviation +

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: We have given that the probability distribution.

Q: The mean of a binomial distribution is 3 and variance is 3/2. Find the ility of (i) 0 success (ii) 2…

A: 5 Mean of binomial distribution is 3 Variance=3/2 That is, np=3np(1-p)=323(1-p)=321-p=12     p=12…

Q: The table below shows the probability distribution of a random variable Z. z P(Z) 14 0.2 15 0.1 16…

A: Given data is Z P(Z) 14 0.2 15 0.1 16 0.7

Q: Find the variance of the binomial distribution for which n = 300 and p = 0.93

A:

Q: Thirteen percent of U.S. employees who are late for work blame oversleeping. You randomly select…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: i If random variable X has a larger expected value than random variable Y then it must also have a…

A: Solution:  i): In Discrete math, If the expected value of a random variable X larger, then the…

Q: A car dealership sells 0, 2 luxury each day. When selling a car, the dealer also tries to persuade…

A: The probabilities other than the probability of the given combination of x,y  is zero.   P(X=0) =…

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: Q3: A business measurement is a random variable defined by a normal distribution. The variance of…

A: The variance of this population is 2 .The sample variance for 21 randomly selected observations from…

Q: Find the variance for the values of n and pwhen the conditions for the binomial distribution are…

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Q: At a casino, one lucky player is blindfolded and allowed to pick 5 bills from a bowl containing 25…

A: Total number of bills is 25. Number of one hundred dollar bills is 6. 5 bills are drawn at random.

Q: We have the following information about the random variables X and Y: o² = 4.6, o} = 8.5, and pxy =…

A: Given that