If Y = 5X + 10 and X ~ N(10, 25), what is the mean of Y?
Correct answer D. 60
Explanation
For a linear transformation E(aX + b) = aE(X) + b, so E(Y) = 5 × 10 + 10 = 60.
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More Normal Distribution questions
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Correct answer D. 16
Which statement holds for a symmetrical distribution?
Correct answer A. Mean = Mode = Median
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Correct answer C. Unimodal
To which line is the normal curve asymptotic?
Correct answer A. X-axis
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