Question
The manager of a movie theatre wishes to study the relationship between the gender of a guest and whether the guest purchases popcorn. To investigate
The manager of a movie theatre wishes to study the relationship between the gender of a guest and whether the guest purchases popcorn. To investigate the relationship between the manager collected the following information on 200 recent customers:
Purchased | Male | Female | Total |
Yes | 93 | 32 | 125 |
No | 18 | 57 | 75 |
111 | 89 | 200 |
(a) Draw a probability tree diagram showing all possible outcomes (sample space), conditional probabilities, and joint probabilities. Round all probabilities to 3 decimal places if required. (b) Show that all the joint probabilities total to 1.000 (c) If one guest was selected at random, what is the probability the selection would be a female that did not purchase popcorn? Give your answer as a percent number to one decimal place. (d) If one trainee was selected at random, what is the probability the selection would be a male that did purchase popcorn? Give your answer as a percent number to one decimal place.
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