Calculate the standard deviation of the following data: 7...
Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13.
2
4
10
11
Correct answer is A
xx−x(x−x)27−398−249−11100111111224133928
S.D = √∑(x−x)2N
= √∑d2N
= √287
= √4
= 2
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