Question
Mathematics Question on Probability
If each observation of a Row data whose variance is σ2 is multiplied by h, then the variance of the new set is
A
σ2
B
h2σ2
C
hσ2
D
h+σ2
Answer
h2σ2
Explanation
Solution
The correct answer is(B): h2σ2
If each observation of a Row data whose variance is σ2 is multiplied by h, then the variance of the new set is
σ2
h2σ2
hσ2
h+σ2
h2σ2
The correct answer is(B): h2σ2