1. What are the degrees of freedom for the Chi-Square test for the following table?
| 1 | 2 | 3 | Total | |
| 1 | 20 | 36 | 45 | 101 |
| 2 | 80 | 11 | 20 | 399 |
| Total | 100 | 150 | 250 | 500 |
A) 4
B) 6
C) 2
D) 1
2. The chi-square distribution is used in:
A) a goodness-of-fit test
B) a test of a contingency table
C) making inferences about a single population variance
D) All of the above answers are correct
