Question
Mathematics Question on Variance and Standard Deviation
Let a, b, c, d and e be the observations with mean m and standard deviation S. The standard deviation of the observations a + k, b + k, c + k, d + k and e + k is
A
kS
B
S + k
C
KS
D
S
Answer
S
Explanation
Solution
The correct answer is Option (D) : S