Question

Q Find the range of given data 2
65,55,64,40,60 and63.
10
15
20
2​

Answer 1

Answer:

ANSWER

Class Interval

Frequency

10-20

20-30

30-40

40-50

50-60

60-70

10

12

7

7

8

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