Question

31. Draw a frequency distribution table of the following data using intervals:
40 - 45, 45-50, and so on.
41, 56, 42, 53, 52, 50, 41, 56, 60, 62, 64, 43, 52, 48, 49,
47, 59, 54, 55, 44, 60, 62, 61, 52, 51, 57, 59, 54, 48, 63.​

Answer 1

Answer:

Class Interval frequency

10-20 10

20-30 12

30-40 7

40-50 7

50-60 8

60-70 3

 

 

(i) For Cumulative Frequency 30−40 frequency is 7

(ii) Size is 11

Mid point for cumulative frequency 30−40 is 35.

(iii) Range =70−10=60