Mathematics, 09.12.2019 16:31 nisha87

The following table summaries the time, t minutes to the nearest minutes, recorded
i for a group of student to complete an exam.
time it) | 11-20 | 21-25 26-30/31-35 | 36-45 | 46-60l
62
13
10
number | 62 | 88 | 1613
number
101
88
of students!
(p
eft2 = 134281.25
estimate the mean and standard
deviation of these
data

Answers: 1

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The following table summaries the time, t minutes to the nearest minutes, recorded
i for a gro...

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