A coffee vending machine adds brewed coffee and then hot water to make a cup of coffee. Let X = the amount of coffee add

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A coffee vending machine adds brewed coffee and then hot water to make a cup of coffee. Let X = the amount of coffee add

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A Coffee Vending Machine Adds Brewed Coffee And Then Hot Water To Make A Cup Of Coffee Let X The Amount Of Coffee Add 1
A Coffee Vending Machine Adds Brewed Coffee And Then Hot Water To Make A Cup Of Coffee Let X The Amount Of Coffee Add 1 (9.45 KiB) Viewed 117 times
A coffee vending machine adds brewed coffee and then hot water to make a cup of coffee. Let X = the amount of coffee added and Y = amount of water added, assume the following X-N(45,5) (ie E(X) = 45 and Var(X) = 5) Y-N(103,11) Cov(X,Y)= 0.6 What is the variance in the amount of liquid that ends up in the cup, ie Var(X+Y)?
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