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Twenty percent of the applications received for a particular position are rejected. What is the probability that among the next fourteen applications, a. none will

Twenty percent of the applications received for a particular position are rejected. What is the probability that among the next fourteen applications,

a. none will be rejected?
b. all will be rejected?
c. less than 2 will be rejected?
d. more than four will be rejected?
e. Determine the expected number of rejected applications and its variance.

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