Question:medium

The variance of 20 observations is 5. If each observation is multiplied by 2, then variance of resulting observations is

Show Hint

Statistics Tip: If $Y = aX + b$, then $Var(Y) = a^2 \times Var(X)$.The addition or subtraction of a constant does not affect the variance.
Updated On: Apr 23, 2026
  • 5
  • 10
  • 4
  • 20
Show Solution

The Correct Option is D

Solution and Explanation

Was this answer helpful?
0

Top Questions on Variance and Standard Deviation

Questions Asked in MHT CET exam