Bill kept track of the number of hours he spent exercising each week. The results for 12 weeks are shown below. Find the Median number of hours Bill spent exercising per week. 8.1 8.6 8.7 7.5 8.3 8.1 8.7 8.7 7.9 8.2 7.5 6.6 O a. 8.1 O b. 8.15 O c. 8.5 O d. 8.2

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