EM-1276
Mean
E Math · Secondary 3 · Hard · Mean
A grouped frequency table shows the daily time spent on homework by 120 students.
Time, t (hours):
0 < t ≤ 1 : 20 students
1 < t ≤ 2 : 35 students
2 < t ≤ 3 : 40 students
3 < t ≤ 4 : 25 students
Estimate the mean time spent on homework per day.
Time, t (hours):
0 < t ≤ 1 : 20 students
1 < t ≤ 2 : 35 students
2 < t ≤ 3 : 40 students
3 < t ≤ 4 : 25 students
Estimate the mean time spent on homework per day.
- 2.1 hours
- 2.0 hours
- 2.5 hours
- 1.8 hours
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