The marketing manager of company has noted that she basically receives 10 complaint calls from customers throughout a week (suppose a week has 7 days), and that the calls are independent.
(a) Determine the probability that she receives exactly 5 complaint calls in one week.
(b) Determine the probability that she receives at least 2 complaint calls in one day.
(c) Determine the expected number of complaint calls in one month (assume a month has 30 days).