Q.

 If the standard deviation of 0,1,2,3,,9 is K, then the  standard deviation of 10,11,12,13,,19 is 

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a

K

b

K+10

c

K+10

d

10K

answer is A.

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Detailed Solution

 

If the standard deviation of x1,x2,x3...xn is K then the standard deviation of x1+m,x2+m,x3+m,...,xn+mis K only

If the standard deviation of 0,1,2,3,4…,9 is K, then the standard deviation of 10,11,12,13,,19 is K only

 

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