Q. 84.4( 23 Votes )

# <span lang="EN-US

Here, we can find mean by either direct or assumed mean method. Let’s find mean of the data using direct method as data given have smaller values.

First, construct a table for ease of calculation. Mean is given by Mean = 1961/40

Mean = 49.025

Or approximately, mean = 49

Thus, mean number of days a student was present is 49.

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