Averages from Frequency Tables

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Question 29
Hard

The bar chart shows how many hours of homework 30 students did last week.

Bar chart showing the number of students for different ranges of homework hours.

Hours of HomeworkNumber of Students
0 to 26
3 to 59
6 to 88
9 to 114
12 to 143

Calculate an estimate for the mean number of hours of homework.

[3]

Averages from Frequency Tables Questions

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