Which of the following correctly lists the data sets in order of greatest to least standard deviation?
I. 4, 12, 15, 17, 19, 25
II. 42, 42, 42, 42, 42, 42
III. 57, 58, 59, 50, 51, 52  Choose the correct choice from the following options:
A) II, I, III  B) I, III, II  C) I, II, III  D) II, III, I  E) III, II, I
out of three given sets,   II has all numbers same, so it has zero standard deviation hence it is Least   only answer choices C and D have II in least position.   Out of I ans III   III has consecutive numbers , hence all are closedly spaced hence std deviation will be less   while in I,numbers are spread widely hence std deviation should be more than III   hence order should be II, III, I   IMO I, II, III
<result>C</result>
Which of the following correctly lists the data sets in order of greatest to least standard deviation?
I. 4, 12, 15, 17, 19, 25
II. 42, 42, 42, 42, 42, 42
III. 57, 58, 59, 50, 51, 52