121 Suppose x is a binomial random variable with n = 20 and p = .7 ....

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121 Suppose x is a binomial random variable with n = 20 and p = .7 .

a. Find P(x = 14) .

b. Find P(x … 12) .

c. Find P(x 7 12) .

d. Find P(9 … x … 18) .

e. Find P(8 6 x 6 18) .

f. Find m, s2 , and s.

g. What is the probability that x is in the interval m { 2s ?

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Statistics

ISBN: 9781292022659

12th International Edition

Authors: James T Mcclave, Terry Sincich

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