Question

15-(7+30÷6-(6+6)+7) ​

Answer 1

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

Answer 2

Answer:

1. 15-(7+30/6-(6+6)+7)
2. 15-(7+5-12+7)
3. 15-(12-12+7)
4. 15-(0+7)
5. 15-7
6. 8