Question

Among the 120 applicants for a job, only 80 are qualified. If 5 of these applicants...

Among the 120 applicants for a job, only 80 are qualified. If 5 of these applicants are randomly selected for an interview, answer the following:

Find the probability that exactly 2 out of 5 are qualified for the job.

Find the probability that at least 3 out of 5 are qualified for the job.

Find the probability that at most (at most) 4 out of 5 are qualified for the job.

Math   Statistics-And-Probability   
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Answer #1

This is a binomial distribution question with

n = 5

p = x/n = 80/120 = 0.667

q = 1 - p = 0.333

where

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