Question

To solve a problem, the time taken (in seconds) by the students are as follows: 37, 31, 27, 18, 59, 45, 54, 40, 32, 43, 39, 49, 45, 40, 59, 53, 52, 50, 40, 59, 60, 23, 21, 20, 22. Construct a frequency table with equal class width and one of the class intervals as 25-32 for the above.​

Answer 1

Answer:

The time taken, in seconds, to solve a problem by each of 25 pupils is as follows:

16,20,26,27,28,30,33,37,38,40,42,43,46,46,46,48,49,50,53,58,59,60,64,52,20

Class interval of 10 second

frequency class interval Distribution frequency

11−21

22−32

33−43

44−55

56−66

67−77

78−88 3

4

6

8

4

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