Question

Draw histograms for the following frequency distributions:

Class Marks	16	24	32	40	48	56	64
Frequency	8	12	15	18	25	19	10

Answer 1

From the given data:

Class Marks	Class Intervals	Frequency
16	12-20	08
24	20-28	12
32	28-36	15
40	36-44	18
48	44-52	25
56	52-60	19
64	60-68	10

Steps of construction:

(a) Convert the class marks into class intervals.

(b) Taking suitable scales, mark class intervals on the x-axis and frequency on the y-axis.

(c) Construct rectangles with class intervals as bases and corresponding frequencies as heights.