1. Let X be the discrete variable that 'getting 4 in a throw of two dice'. (a) (b) (c) Show that X is a discrete random variable. Find the cumulative distribution function and illustrate in graph. Hence, find median.

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A: (29) Given x2+y2-z2=1 n

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A: You're welcome.

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Q: answer

A: Please refer to the image below

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A: The mean :

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