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Let X denote the number of hours you stu...

Let X denote the number of hours you study during a randomly selected school day.The probability that X can take the values of .x, has the following form, where K is some cons"tan"t.

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Let X denote the number of hours you study during a randomly selected school day. The probability that X can take the values x, has the following form, where k is some unknown constant. P(X=x)={{:(0.1, "if "x =0),(kx, "if "x = 1 or 2 ),(k(5-x), "if " x=3 or 4),(0,"otherwise"):} (a) Find the value of k. (b) What is the probability that you study at least two hours ? Exactly two hours? At most two hours?

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