EM-1272
Mean
E Math · Secondary 3 · Hard · Mean
The grouped frequency table shows the daily time spent on homework by 40 students.
- 0 < t ≤ 1 hours: 6 students
- 1 < t ≤ 2 hours: 14 students
- 2 < t ≤ 3 hours: 12 students
- 3 < t ≤ 4 hours: 8 students
Using class midpoints, find an estimate of the mean time spent on homework per day.
- 0 < t ≤ 1 hours: 6 students
- 1 < t ≤ 2 hours: 14 students
- 2 < t ≤ 3 hours: 12 students
- 3 < t ≤ 4 hours: 8 students
Using class midpoints, find an estimate of the mean time spent on homework per day.
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