shannonmil920 shannonmil920

03-05-2021
Mathematics

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A class has five students. What is the probability that exactly two of the students were born on a weekend?

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RyanYuhYeet RyanYuhYeet

03-05-2021

Answer:

This is binomial.

Here n = 5

p = 2/7

mean = np = 5*2/7 = 10/7 = 1.42857

standard deviation = sqrt(npq) = sqrt(5*2/7*5/7) = 1.01015

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