Question

Non
The Standard Deviation of a set of
observation is 6.5. If each value is
increased by 10, then the
Standard deviation is-
2.5
6.5
3.5
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Answer 1

Answer:

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Answer 2

Answer:

6.5

Step-by-step explanation:

sd = sqrt(sum (xi -mean)^2/n)

xi -mean, when each value is increased by 10, mean also gets increased by 10

=> xi+10-mean-10=xi-mean

which gets nullified

hence sd remains same even if each value is increased

s.d=6.5

hope this helps