QUESTION 4 [25 MARKS] The discrete random variable X has the following distribution: X P(X=x) 0 k 1 2k 2 3k 3 4k 4 5k 5 6k (a) Find the value of k. (b) Compute the expected value and standard deviation of X. (c) Find P(X > E(X)). [3 marks] [4 marks] [3 marks]
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Step 1: The sum of all probabilities in a probability distribution must equal 1. Show more…
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