Charlie goes to sleep at different times each night, and wakes up at different times. He wanted to know what the most frequent amount of hours he spent sleeping was, so he calculated the data for the past week, and found the following:

Question

Charlie goes to sleep at different times each night, and wakes up at different times.  He wanted to know what the most frequent amount of hours he spent sleeping was, so he calculated the data for the past week, and found the following:

Monday - 7 hours

Tuesday - 5 hours

Wednesday - 9 hours

Thursday - 8 hours

Friday - 9 hours

Saturday - 9 hours

Sunday - 8 hours

What is the mode of the amount of hours Charlie slept?

(1 point)
Responses

7 hours
7 hours

7.8 hours
7.8 hours

8 hours
8 hours

9 hours
9 hours
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GPT-4o mini · Answer

To find the mode of the amount of hours Charlie slept over the past week, we need to count the frequency of each amount of sleep:

7 hours: 1 time (Monday)
5 hours: 1 time (Tuesday)
9 hours: 3 times (Wednesday, Friday, Saturday)
8 hours: 2 times (Thursday, Sunday)

The mode is the number that occurs most frequently. In this case, 9 hours occurred 3 times, which is more than any other number.

Therefore, the mode of the amount of hours Charlie slept is 9 hours.