Calculate the mean deviation and coefficient of mean deviation for the following distribution:
Wages (in rupees): 250-260 240-250 230-240 220-230 210-220 200-210 190-200
Number of workers: 17 24 22 21 18 14 8
A) Mean deviation = ..., Coefficient of mean deviation = ...
B) Mean deviation = ..., Coefficient of mean deviation = ...
C) Mean deviation = ..., Coefficient of mean deviation = ...
D) Mean deviation = ..., Coefficient of mean deviation = ...
