Q. 135.0( 1 Vote )

Standard deviation of a collection of data is 2√2. If each value is multiplied by 3, then the standard deviation of the new data is
A.

B. 4√2

C. 6√2

D. 9√2

Answer :

SD of set B = n × SD of set A, where n is the data multiplier

Here, n = 3.


So, SD of set B = 3 × SD of set A = 3 × 2 = 6


So, the correct option is C.

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