A random variable suppose that the random variable x has
Question - A random variable. Suppose that the random variable X has mean 10 and variance 25.
(a) Find the mean and standard deviation of 2X.
(b) Find the mean and standard deviation of -2X.
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question - two random variables refer to the previous exercise suppose that the random variable y has mean 20 and
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question - a random variable suppose that the random variable x has mean 10 and variance 25a find the mean and standard
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