Q2 of 108 Page 33

For a frequency distribution standard deviation is computed by applying the formula

We know,


M.D =


Variance =


SD,


Hence,

More from this chapter

All 108 →
7

If a variable X takes values 0, 1, 2, ….., n with frequencies nC0, nC1, nC2, …….nCn, then write variance X.

 1

For a frequency distribution mean deviation from mean is computed by

 3

If v is the variance and σ is the standard deviation, then

 4

The mean deviation from the median is