Multiple Choice
Given independent random variables with means and standard deviations as shown,find the mean and standard deviation of the variable 3X - Y .Round to two decimal places if necessary.
A) μ = 60,σ = 26
B) μ = 740,σ = 48.85
C) μ = 400,σ = 40.79
D) μ = 400,σ = 48.85
E) μ = 400,σ = 26
Correct Answer:

Verified
Correct Answer:
Verified
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