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Question

The Goals scored by players in a game are given below.
x3456f2345
Find the standard deviation of their goals scored by assumed mean method.

A
1.059
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B
2.212
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C
2.314
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D
4.215
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Solution

The correct option is A 1.059
Let the Assumed mean, A = 4
xifidi=xiAfidifidi23212243000541446521020n=14fidi=12fidi2=26

Standard Deviation

σ=fidi2N(fidiN)2

=2614(1214)21.059

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