Chris has determined that the probability of earning a 95 on the next economics test is 10%,the probability of earning an 85 is 40%,and the probability of earning a 75 is 50%.
Chris's expected score on this test can be determined by solving
A) (.33) (95) + (.33) (85) + (.33) (75) .
B) (10) (95) + (40) (80) + (50) (70) .
C) (.1) (95) + (.4) (85) + (.5) (75) .
D) (95 + 85 + 75) /3.
Correct Answer:
Verified
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