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15 October, 02:44

The table lists the probability of Amy, Susan, Mark, Nina, and Jeff studying on a Sunday. Also, the average number of hours each studies is given.

Amy Susan Mark Nina Jeff

Probability: 0.23 0.31 0.17 0.19 0.10

Average Number

of Hours of Study:2.5 1.5 3 2 4.5

If you select 10 Sundays from the school year at random, who is likely to have studied the most hours overall?

a. Amy

b. Susan

c. Mark

d. Nina

e. Jeff

+3
Answers (1)
  1. 15 October, 06:14
    0
    Amy: 2.5 hours * 10 sundays = 25 hours * 0.23 probability = 5.75 hours

    Susan: 1.5 hours * 10 Sundays = 15 hrs * 0.31 probability = 4.65 hours

    Mark: 3 hours * 10 Sundays = 30 hours * 0.17 probability = 5.10 hours

    Nina: 2 hours * 10 Sundays = 20 hours * 0.19 probability = 3.8 hours

    Jeff: 4.5 hours * 10 Sundays = 45 hours * 0.10 probability = 4.5 hours

    Based on the result of my computation, Choice A.) Amy is likely to have studied the most hours over all with 5.75 hours.
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