78. Individual A has a red die and B has a green die (both fair). If they
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78. Individual A has a red die and B has a green die (both fair).
If they each roll until they obtain five “doubles” (1–1, . . . , 6–6), what is the pmf of X the total number of times a die is rolled? What are E(X) and V(X)?
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Probability And Statistics For Engineering And The Sciences
ISBN: 9781111802325
7th Edition
Authors: Dave Ellis, Jay L Devore
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