Assignment

1. A small town has 5600 residents. The residents in the town were asked whether or not they favored building a new bridge across the river. You are given the following information on the residents' responses, broken down by gender:

                   Men         Women       Total
In Favor       1400        280            1680
Opposed      840          3080          3920
Total            2240        3360          5600

A) What is the probability of a randomly selected resident being Opposed to the bridge?

B) What is the probability that a randomly selected resident is a man and is In Favor of the bridge?

C) What is the probability of a randomly selected resident being a man or In Favor of the bridge?

D) If a randomly selected resident is a woman, what is the probability that she is in favor of the bridge?

E) Are gender and opinion about the bridge mutually exclusive events? Why?

F) Are gender and opinion about the bridge independent events? Why? Show some "proof" with probabilities.

2. How many Combinations of 4 students can be selected from a group of 9 students?

3. Describe the Sample Space for the experiment of rolling a pair of dice.