1. Explain how to find the expected frequency for a cell in a contingency table. 2. Explain the difference between marginal frequencies and joint frequencies in a contingency table. 3. Explain how the...

1. Explain how to find the expected frequency for a cell in a contingency table.

2. Explain the difference between marginal frequencies and joint frequencies in a contingency table.

3. Explain how the chi-square independence test and the chi-square goodness-of-fit test are similar. How are they different?

4. Explain why the chi-square independence test is always a right-tailed test.