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Two Dice Are Rolled Together. What Is The Probability Of Getting Two Numbers Whose Product Is Even? |
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Answer» Total number of outcomes possible when a die is ROLLED = 6 (∵ any one face out of the 6 faces) Hence, Total number of outcomes possible when two dice are rolled, n(S) = 6 × 6 = 36 Let E = the event of getting two numbers WHOSE product is even = {(1,2), (1,4), (1,6), (2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (3,2), (3,4), (3,6), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (5,2),(5,4), (5,6), (6,1), (6,2), (6,3), (6,4), (6,5), (6,6)} Hence, n(E) = 27 P(E) = n(E)/n(S)=27/36=3/4. Total number of outcomes possible when a die is rolled = 6 (∵ any one face out of the 6 faces) Hence, Total number of outcomes possible when two dice are rolled, n(S) = 6 × 6 = 36 Let E = the event of getting two numbers whose product is even = {(1,2), (1,4), (1,6), (2,1), (2,2), (2,3), (2,4), (2,5), (2,6), (3,2), (3,4), (3,6), (4,1), (4,2), (4,3), (4,4), (4,5), (4,6), (5,2),(5,4), (5,6), (6,1), (6,2), (6,3), (6,4), (6,5), (6,6)} Hence, n(E) = 27 P(E) = n(E)/n(S)=27/36=3/4. |
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