A salesperson contacts eight potential customers per day. From past experience, we know that the probability of a potential customer making a purchase is .10.
a. What is the probability the salesperson will make exactly two sales in a day?
b. What is the probability the salesperson will make at least two sales in a day?
c. What is the probability that the salesperson will make no sales in a day?
d. What is the average number of sales per day?