P = {22, 24, 26, 28, 30, 32}
Q = {2, 24, 25, 26, 27, 28}
R = {4, 7, 10, 13, 16, 19}
If p is the standard deviation of set P, q is the standard deviation of set Q, and r is the standard deviation of set R, which of the following must be true?	Options:
A) p<q<r
B) p<r<q
C) q<r<p
D) q<p<r
E) r<q<p
P has difference by 2.   Q has difference of 22 between 2 and 24 and for other numbers we have difference by 1.   R has difference 3.   We need to take the SD as per the difference.   So Q &gt; R &gt; P. Option p&lt;r&lt;q has this set   ANSWER:p&lt;r&lt;q
<result>B</result>
P = {22, 24, 26, 28, 30, 32}
Q = {2, 24, 25, 26, 27, 28}
R = {4, 7, 10, 13, 16, 19}
If p is the standard deviation of set P, q is the standard deviation of set Q, and r is the standard deviation of set R, which of the following must be true?