Question

8. The following table shows the marks obtained (out of 15) by the students of
class VII. Calculate the mean marks:
14
13
12
15
11
10
9
Marks
8
4
8.
51
10
1
3
4
5
No: of
students​

Answer 1

Answer:

The number should be arranged in a line

Answer 2

Answer:

Consider, (9/16x4/12)+(9/16x-3/9) Recall the distributive property, a×(b+c) = a×b + a×c (9/16x4/12)+(9/16x-3/9) = (9/16) × (4/12 − 3/9) = (9/16) × [(1/3) − (1/3)] = (9/16) ×0 = 0