Awarding ! five classmates came to dan’s birthday party. this is half as many as the number of his summer camp friends who came and one-third of the number of his relatives that came. how many people were at dan’s birthday party? awarding !

Five classmates came to Dan’s birthday party. This is half as many as the number of his summer camp friends who came and one-third of the number of his relatives that came. How many people were at Dan’s birthday party?

classmates: 5

camp friends: 5 x 2 = 10

relatives:  5 x 3 = 15

Number of people at Dan’s birthday party: 5 + 10 + 15 = 30

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0