Question

From past experience Kave Jewelers know that 80% of their customers in the month before Christmas are male. Market research shows that 75% of adult males and 30% of adult females watch professional football. So Kave buys advertising spots during Sunday football games.

(a) Draw a tree diagram to represent the situation and label all of the probabilities.

(b) An adult walks into a Kave Jewelers on December 15. What is the probability that the person has seen an ad?

(c) If a customer who shops at Kave has seen an add, what is the probability that the customer is female?

(d) If a customer has not seen an ad, what is the probability that the customer is male?

Answer 1