# Twelve percent of the customers of a bank overdraw their accounts at least once a month. A sample of eight customers is selected. What is the probability that exactly two customers in the sample...

Twelve percent of the customers of a bank overdraw their accounts at least once a month. A sample of eight customers is selected. What is the probability that exactly two customers in the sample will overdraw their account this month

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changchengliang | Certified Educator

X is binomial distribution (n=8,p=0.12)

P(X=2)

=8C2 .12^2 .88^6

=0.1872477...

= 18.7 % (approx)

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