Errors in a billing process often lead to customer
dissatisfaction and ultimately hurt bottom-line profits. A
traveling company figured out that 40% of the bills prepared
contained errors. Using the binomial distribution, if 15 bills are
processed, what is the probability that:
a) none of bills will contain
errors?
b) 2 or more bills will contain
errors?
c) What are the mean and
the standard deviation of the probability
distribution?