The mean of 100 observations is 50, and their standard deviations is 5. The sum of all squares of all the observations is

Given,

=50×100

=5000

Now,

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Question

The mean of 100 observations is 50, and their standard deviations is 5. The sum of all squares of all the observations is

Philoid · Accepted Answer

Given,

=50×100

=5000

Now,