TS ICET 24 May 2018 Shift 1 Paper

Question : 145 of 200

Marks: +1, -0

The standard deviation of any seven consecutive positive integers is

Solution:

We know that when the observation is in arithmetic progression,
The standard deviation = c.d

√{{n^2-1}/12}

=1√{{7^2-1}/12}=2

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