Find the mean deviation about the median for the following data :

Question

Philoid · Accepted Answer

The given observations are in ascending order. Adding a row corresponding to cumulative frequencies to the given data, we get,

Now, N=50 which is even.

Median is the mean of the 25^th observation and 26^th observation. Both of these observations lie in the cumulative frequency 30, for which the corresponding observation is 13.

Now, absolute values of the deviations from the median,

We have, and