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A sensor reading X has mean 5 and variance 4. After… | StemPy Lab

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A sensor reading X has mean 5 and variance 4. After calibration, the reading is changed to Y = 2X - 3. What is the variance of Y?

MathematicsEasyHigh School (11–12)Statistics and Probability › Random Variables and Probability Distributions AP A-Level IB

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A sensor reading $X$ has mean $5$ and variance $4$ . After calibration, the reading is changed to $Y = 2X - 3$ . What is the variance of $Y$ ?

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