It is family game night in Minneapolis. Folks settle in to play their favorite game and eat their favorite snack. A random sample of 115 families was asked about their preferred game and snack, and the results are presented in the two-way table below.

	Corn Chips	Chips & Salsa	Cookies
Yahtzee	10	3	12
Trivial Pursuit	8	14	7
Monopoly	14	17	7
Hearts	12	7	4

How many degrees of freedom would you use for testing the null hypothesis that game preference is independent of snack preference?

6

7

12

48

114