If each observation is increased or decreased by a; then the mean is also increased or decreased by a.

If each observation of the data is decreased by 8 then their mean

If each observation of the data is increased by 5, then their mean

How can pressure be increased or decreased?

Rate when dimensions are increasing or decreasing

In a set of 2n distinct observation,each of the observation below the median of all the observations is increased by 5 and each of the remaining observations is decreased by 3 . Then the mean of the new set of observations:

The mean of a set of observation is a. If each observation is multiplied by b and each product is decreased by c, then the mean of new set of observations is ______.

The mean of a set of observations is a . If each observation is multiplied by b and each product is decreased by c , then the mean of new set of observations is

A number is increased by 20 % and then decreased by 20 % find the net increase or decrease per cent ?