Question

Represent the following frequency distribution by a histogram.

Mid-Values	2.5	7.5	12.5	17.5	22.5
Frequency	5	10	30	15	6

Answer 1

Here,

The difference between the two mid points is 5 therefore half of the difference, i.e. 2.5 will be added and subtracted from each mid-point to get the following class intervals.

Mid-Values	Class Interval	Frequency
2.5 7.5 12.5 17.5 22.5	0 − 5 5 − 10 10 − 15 15 − 20 20 − 25	5 10 30 15 6