Question: Bricks have weights that have a mean 250 and a standard deviation 4. (a) Suppose X is the weight of a randomly chosen brick. Let

Bricks have weights that have a mean 250 and a standard deviation 4.
(a) Suppose X is the weight of a randomly chosen brick. Let Y = c + dX. What are the values of C and d such that Y has a mean 100 and a standard deviation 1.
(b) Suppose 10 bricks are chosen at random. What are the mean and the standard deviation of the total weight of these 10 bricks?

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