The owner of a restaurant serving Continental-style entrées was interested in studying ordering patterns of patrons for the Friday-to-Sunday weekend time period.
Records were maintained that indicated the demand for dessert during the same time period. The owner decided to study two other variables, along with whether a dessert was ordered: the gender of the individual and whether a beef entrée was ordered. The results are as follows:

A waiter approaches a table to take an order for dessert. What is the probability that the first customer to order at the table
a. orders a dessert?
b. orders a dessert or has ordered a beef entrée?
c. is a female and does not order a dessert?
d. is a female or does not order a dessert?
e. Suppose the first person from whom the waiter takes the dessert order is a female. What is the probability that she does not order dessert?
f. Are gender and ordering dessert independent?
g. Is ordering a beef entrée independent of whether the person orders dessert?

Transcribed Image Text:

GENDER Total 136 600 DESSERT ORDERED Male 96 320 Female 40 224 240 464 Yes No 0 Total 280 BEEF ENTREE DESSERT ORDERED Yes No Yes 71 116 187 No 65 348 413 Total 136 464 600 0 Total