Exhibit 5-10
The probability distribution for the number of goals the Lions soccer team makes per game is given below.
-Refer to Exhibit 5-10. The expected number of goals per game is
A)0
B)1
C)2, since it has the highest probability
D)2.35

Question

Exhibit 5-10
The probability distribution for the number of goals the Lions soccer team makes per game is given below. 
-Refer to Exhibit 5-10. The expected number of goals per game is
A)0 
B)1 
C)2, since it has the highest probability 
D)2.35

Quizplus · Accepted Answer

The expected number of goals per game can be calculated by multiplying each possible number of goals by its corresponding probability and adding up the products. 
Expected number of goals = (0 x 0.2) + (1 x 0.25) + (2 x 0.35) + (3 x 0.15) + (4 x 0.05) = 2.35. Therefore, the best choice is D, which is the expected number of goals per game.

Exhibit 5-10 The Probability Distribution for the Number of Goals the Lions