Data Sufficiency (DS) | Re: Is the standard deviation of the numbers in list R less than the stand

Statement 1 -

Case 1 - S= {2,4,4,4, 6}; R= {3,4,4,4,5}

SD of S >SD ofR

Case2- S= {2,4,4,4,4,4,4,4,4,6}; R={3,3,3,3,3,5,5,5,5,5}

SD of S< SD ofR

Insufficient

Statement 2-

Since each number in S is same, SD of S is 0. SD of any list is non-negative; hence, SD of R can never less than SD of S or0.

Sufficient