The table shows information about the time

MATHEMATICS · Subjective · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation

Problem

The table shows information about the time, in minutes, spent on homework by each of 32 pupils in one night.
Time (tt minutes)Number of pupils
0<t≤200 < t \leq 207
20<t≤4020 < t \leq 4016
40<t≤6040 < t \leq 603
60<t≤8060 < t \leq 806
Estimate the mean time spent on homework.

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