Question: Let f(x) = k(9x - x ) if o 9. (a) For what value of k is fa probability density function? K= (b) For that

Let f(x) = k(9x - x ) if o 9. (a) For what value of k is fa probability density function? K= (b) For that value of k, find P(X > 1). P(X > 1) = (c) Find the mean. U =

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