You are interested in being able to predict happiness scores. You think that the amount of chocolate a person eats and number of minutes working out per day may be related to happiness scores. You measure these three scores from a large sample of undergraduate students and find the following correlation table:

	Chocolate (x1)	Working Out (x2)	Happiness (y)
Chocolate (x1)	1
Working Out (x2)	-.63	1
Happiness (y)	.85	-.37	1

a. Calculate and interpret the coefficient of determination for happiness scores and chocolate. (5 points)

b. When calculating the multiple coefficient of determination forhappiness scores with chocolate and working out,what is your numerator? (2 points)

c. When calculating the multiple coefficient of determination for happiness scores with chocolate and working out, what is your denominator? (2 points)

d. What is your multiple coefficient of determination for happiness scores with chocolate and working out?(round to 4 decimal places) (1 point)

e. Interpret your multiple coefficient of determination for happiness scores with chocolate and working out. (2 points)