If the standard deviation of the numbers 2, 4, 5 & 6 is a constant a, then find the standard deviation of the numbers 4, 6, 7 & 8.
(a) a + 2
(b) 2a
(c) 4a
(d) a
I have been asked this question in my homework.
This intriguing question originated from Statistics topic in division Statistics of Mathematics – Class 11