Question

Ten students in a class have obtained the following marks in statistics. Find the
SD. of marks
Student No.
1
2
3
4
5
6
7
8
9
10
Marks
5
10
20
25
40
42
45
48
70
80
[Hint. Use short-cut method]
please step by step solve this question please​

Answer 1

Answer:

EXERCISE 7.2

Find the cube roots of the following numbers by finding thier ones and tens digit

389017

Step-by-step explanation:

7

8

9

10

Marks

5

10

20

25

40

42

45

48

70

80

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