Every fall, managers at a bank run a marketing campaign to promote their credit card to customers. The marketing pitch will be presented to a random sample of 20 customers visiting the bank. Historically, the probability a customer accepting the credit card has been 0.15.
a) What is the probability that two customers accept the credit card offer?
b) What is the expected number of customers that will accept the credit card offer?
c) Find the standard deviation of the number of customers that will accept the credit card offer.