Question

From the following frequency distribution table draw a histogram and frequency polygon.

0 - 10
7
10 - 20
8
20 - 30
12
30 - 40
15
40 - 50
3
50 - 60
9​

Answer 1

Answer:

Construct a histogram for the given data. Mark the mid point of the tops of rectangles of histogram and join these points by line segments. To complete the polygon, mark two classes (−10 to 0) and (80 to 90). Join the end point of the line segments to the mid points of these two classes. The curve so obtained is a frequency polygon.