if the sd of x is 3 what is the variance of 5-2x
Answers
Answered by
26
Answer:
9
Step-by-step explanation:
If SD is 3 Then var is 3^2 =9 Var (x) = 9 Addition /subtraction of a number has no effect on variance
Answered by
98
Answer: The value of variance of 5-2x is 36.
Step-by-step explanation:
Since we have given that
Standard deviation of x = 3
σ = 3
We need to find the value of Var(5-2x).
As we know that
so, our equation becomes,
Hence, the value of variance of 5-2x is 36.
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