Question: 8) A random variable follows a binomial distribution with a probability of success equal to 0.64. For a sample size of n=7, find the values

8) A random variable follows a binomial distribution with a probability of success equal to

0.64. For a sample size of n=7, find the values below.

a. the probability of exactly 4 successes

b. the probability of 5 or more successes

c. the probability of exactly 7 successes

d. the expected value of the random variable

(Round to three decimal places asneeded.)

10) Given a binomial distribution with n=13 and p= 0.45, obtain the values below:

A. the mean

B. the standard deviation

C. the probability that the number of successes is larger than the mean

D. the probability that the number of successes is within 2 standard deviation of the mean

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