Question

A class teacher has the following attendance record of 40 students of a class for the whole term. Find the mean number of days a student was present out of 56 days in the term. Number of days 35-38 38-41 41-44 44-47 47-50 50-53 53-56 Number of students 1 3 4 4 7 10 11 ​

Answer 1

Answer:

HI DEAR

Mean is given by

Mean is given by⇒ Mean = 1961/40

Mean is given by⇒ Mean = 1961/40⇒ Mean = 49.025

Mean is given by⇒ Mean = 1961/40⇒ Mean = 49.025Or approximately, mean = 49

Mean is given by⇒ Mean = 1961/40⇒ Mean = 49.025Or approximately, mean = 49Thus, mean number of days a student was present is 49.

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