Data Insights

Twenty-five adults reported the amount of time each spent exercising during a particular week. The results are summarized in the graph as follows: 5 respondents reported exercising for less than 1 hour, 3 respondents reported exercising for at least 1 hour but less than 2, and so on.

The number of respondents who exercised on average less than one-half hour per day during the week is between ___________ , inclusive.

A) 0 and 5
B) 5 and 8
C) 8 and 10
D) 10 and 14
E) 14 and 19
[spoiler]
OA: After a few replies.
The original explanation states that "A respondent who averaged less than one-half hour of exercise per day would have reported less than 3.5 hours of exercise for the week".
Shouldn't this be 10.5 hours for the week?

(Total Hours Spent Exercising in a Week)/(7 Days) = 1.5 Hours per day
Thus Total hours = 1.5 * 7 = 10.5[/spoiler]