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I need perfect answer for this only i need final answer perfectly . Question 2 The life (in months) of a certain computer component has

I need perfect answer for this only i need final answer perfectly

. Question 2 The life (in months) of a certain computer component has a probability density function defined by f(x) = -e 1 -z/4 for x in [0, co). a) Find the mean of X. b) Find the variance of X. c) Find the standard deviation of X

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