Question

3. Make a frequency distribution table for given data
39,31,32,36,35,38,37,32,35,32,34,31,34,31,32,32,33,35,31,37
37,33,38,39,31,36,38,39,37,34,33,36,31,35,33,36,38,31,39,33​

Answer 1

Answer:

In this table class intervals are such that Lower limit is included and upper limit is not included in the class.

That means In interval (30−35), 30 is included but 35 is excluded.

And for frequency we counted how many times number from the interval occurs in given data.

Class interval Frequency

25−30 2

30−35 7

35−40 11

40−45 7

45−50 3

Total 30

(I) The least frequency is 2 and is in the class 25−30

(ii) The maximum frequency is 11 and is in the class 35−40