DI D2 D3 D4 D5 599 20 p(x) = Question 1: Discrete random variables Let X be a discrete random variable with the following probability mass function: D1 D1 + D2 + D3 + D4 + D5 D2 D1 + D2 + D3 + D4 + D5 D3 D1 D2 D3 + D4 + D5 D4 D1 D2 + D3 + D4 + D5 D5 D1 + D2 + D3 + D4 + D5 0 x = 1 x = 2 x = 3 x = 4 x = 5 otherwise d) Draw the graph of the cumulative distribution function. What is the shape of the graph?

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