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  3. problem 2 a tetrahedron foursided die is rolled turice and...

Question: problem 2 a tetrahedron foursided die is rolled turice and...

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Problem 2. A tetrahedron four-sided die) is rolled turice and the sum X of the results of the two rolls is recorded. We know that the chance that X-k is proportional to k. (a) What is the probability model for X, i.e., what values can X take, and what are the corresponding probabilities? (b) Compute the chance that the sum of the two rolls wieceed but will not be more than 6. (c) Compute the expected value of X

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