A.    X is a discrete random variable, given its probability distribution below.        X            100                    250             380              420             510    P(X)            0.38              0.30             0.17              0.10             0.05 Answer the following: 1.    3.    What is the probability that X is greater than 100 but less than 420? is the probability that X = 250? 2.    What is the probability that X is below 420? 3.    What is the probability that X is greater than 100 but less than 420? 4.    What is the probability that X is greater than or equal to 380? 5.    What is the probability that X is less than or equal to 510?

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