Ap Statistics Question pls Help ASAP!

Question

Which of the statements are correct? (2 points)

1. A condition for using the chi-square goodness-of-fit test is that all expected counts must be at least five.
2. The chi-square goodness-of-fit test uses 1 − n degrees of freedom.
3. A condition for using the chi-square goodness-of-fit test is the observations are based on a random sample.

A	I only
B	II only
C	I and III only
D	II and III only
E	I, II, and III

Answer 1

C. I and III only

Explanation:

1. True, this ensures that the sample taken is sufficiently large
2. False, the degrees of freedom for this test is calculated by: n - 1
3. True, the observations need to based on a random sample taken from the population