Which of the following is the correct number of degrees of freedom for the chi-square test using these data?

a. 4

b. 8

c. 10

d. 20

e. 4876

The National Longitudinal Study of Adolescent Health interviewed a random sample of 4877 teens (grades 7 to 12). One question asked, “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender:

Select the best answer.

Transcribed Image Text:

Gender Opinion about Female Male Total marriage Almost no 119 103 222 chance Some chance, 150 171 321 but probably not A 50–50 447 512 959 chance A good chance 735 710 1445 Almost certain 1174 756 1930 Total 2625 2252 4877