1. An urn contains 1 red and 3 white balls. Two balls will be randomly selected, with replacement. If equals the number of red balls in the sample, find the probability distribution for .

2. A small town is divided into 4 districts. Below is data for the number of calls each district's police department received during a week period. Do the data provide evidence that some of the town's police departments are busier than others? Test the relevant hypotheses using a = 0.05. District 1 number of calls: 28

District 2 number of calls: 16

District 3 number of calls: 31

District 4 number of calls: 38

3. Is there an association between gender and voter turnout? The table below gives data from the 2016 presidential election for a random sample of 100 women, and a random sample of 100 men. Is there sufficient evidence, at the = 0.10 level, of a relationship? Women that voted: 74

women that did not vote:26

men that voted: 64

men that did not vote: 36