Question

Find the mean deviation from the median for the
following data (1 - 4) :
1. 9, 12, 18, 3; 5, 3, 10, 12, 21, 12, 21.​

Answer 1

Answer:

The most common representive value of a group of data is the mean or the mean.

Mean = sum of all observation/ number of observations

= 1+9+12+18+3+5+3+10+12+21+12+21 / 12

= 127/12

= 1.58..