Q4. The data given below is the distribution of employees of a business according to their efficiency. Find the mean deviation and coefficient of mean deviation from Mean and Median:
Efficiency Index 22-26 26-30 30-34 34-38 38-42
Emloyees 25 35 15 5 2

Just let me get my slide rule out.

Question this is The data given below is the distribution of employees of a business according to their efficiency. Find the mean deviation and coefficient of mean deviation from Mean and Median:
Efficiency Index 22-26 26-30 30-34 34-38 38-42
Emloyees 25 35 15 5 2.