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Suppose that there are 7 trials in a binomial experiment & the probability of success is...

Suppose that there are 7 trials in a binomial experiment & the probability of success is 0.20.

(a) Find the probability of obtaining exactly 2 successes.

(b) Find the probability of obtaining at most 2 successes.

Math   Precalculus   
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Answer #1

Key idea if is the number of success obtained and is the number of trials with success probability then

probability of obtaining successes

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