Math, asked by swethalogesh2020, 1 month ago

find the standard deviation of the given data . 62,58,53,50,63,52,54​

Answers

Answered by sijit1981
2

Answer:

Let us take A=55 as the assumed mean and form the following table.

x

d=x−A=x−55

d

2

50

−5

25

52

−3

9

53

−2

4

55

0

0

58

3

9

62

7

49

63

8

64

∑d=8

∑d

2

=160

σ=

n

∑d

2

−(

n

∑d

)

2

=

7

160

−(

7

8

)

2

=

7

160

49

64

=

49

1056

=

7

32.49

∴ Standard deviation σ≃4.64.

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