1. In a binomial situation n = 5 and pi = 0.40. Determine the probabilities of the following events using the binomial formula:

a. x = 1

b x = 2

2. A telemarketer makes 6 phone calls per hour and is able to make a sale on 30% of these contacts. During the next 2 hours, find:

a. Probability of making exactly 4 sales

b. Probability of making 0 sales

c. Probability of making exactly 2 sales

d. The mean number of sales in the 2 hour period