What Excel command/formula can be used to

calculate is the probability that the insurance company receives 8 claims in

the last two hours of a working day?

It is estimated that the tele-sales centre makes

a loss of R15 for every hang-up. What is the expected loss for the sales made

in the last 30 minutes?

(Write only the number of Rands, do not include "R").

What is the distribution of the random variable

that gives the number of calls that are

What is the probability that two thirds of the

calls were hang-ups? (Round to 3 decimal places.)

What is the probability that 35 to 38 of the

calls were hang-ups? (Round to 3 decimal places.)