Question

kercise 23.3
1. Draw the histogram for the following data:
Class interval
0-10 10-20 20 – 30 30 – 40 40 – 50
Frequency
5 20 I 15 25 5
(ii)
Class interval
0-5
6
5-10
10
10 - 15
5
15 - 20
15
20 – 25
20
No. of students​

Answer 1

Step-by-step explanation:

In first question C.I is continuous so we can draw the graph class interval take on x axis and frequency take on y axis

Answer 2

Step-by-step explanation:

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ANSWER

Mark the class intervals along the X-axis and the number of students along the Y-axis. Draw a histogram for the given data. Now mark the mid points of the upper sides of the consecutive rectangles. The mid points are joined with the help of a ruler. Note that, the first and last edges of the frequency polygon meet at the mid point of the vertical edges of the first and last rectangles.

solution