4. Suppose that we roll three fair dice. (a) What is the expected value of the sum of the numbers that come up? (b) What is the variance of the sum of the numbers that come up?
4. Suppose that we roll three fair dice. (a) What is the expected value of the sum of the numbers that come up? (b) What is the variance of the sum of the numbers that come up?
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 1SE: What term is used to express the likelihood of an event occurring? Are there restrictions on its...
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Transcribed Image Text:4. Suppose that we roll three fair dice.
(a) What is the expected value of the sum of the numbers that come
up?
(b) What is the variance of the sum of the numbers that come up?
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