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[" Q "" 9.Let "X=" time (in minute) that...

[" Q "" 9.Let "X=" time (in minute) that lapses between the bell and the end of the lecture in case of college "],[" professor.Suppose X has p.d.f."f(x)={[kx^(2),,0<=x<=2],[0,," otherwise "]],[" (i) Find the value of "k" ."],[" (ii) What is the probability that lecture ends within "1" minute of the bell ringing? "]

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