15 Probability - Mathematics(HKCEE M.C 19 Probability(1997Q25 Probability Two fair dice are thrown Find the probability that the sum of the two numbers

15 Probability - Mathematics(HKCEE M.C 19...

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Mathematics Mathematics (HKCEE (HKCEE M.C.) M.C.) 19 Probability (1997Q25) Probability Two fair dice are thrown. Find the probability that the sum of the two numbers shown is 8. A. 4 1 B. 6 1 C. 11 1 D. 12 1 E. 36 5 (1997Q26) Probability In a test, there are 3 questions. For each question, the probability that John correctly answers it is 5 2 . Find the probability that he gets exactly 2 questions correct. A. 3 2 B. 25 4 C. 25 12 D. 125 12 E. 125 36 Mathematics / HKCEE M.C. / 19 Probability / P.1
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(1998Q35) Probability Two cards are drawn randomly from five cards numbered 2, 2, 3, 5 and 5 respectively. Find the probability that the sum of the numbers on the cards drawn is 5. A. 5 1 B. 5 2 C. 10 1 D. 25 2 E 25 4 (1998Q36) Probability In a shooting game, the probability that Mr. Tung will hit the target is 3 2 . If he shoots twice, find the probability that he will hit the target at least once. A. 9 1 B. 9 2 C. 9 4 D. 3 2 E. 9 8 Mathematics / HKCEE M.C. / 19 Probability / P.2
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(1999Q35) Probability Two cards are drawn randomly from four cards numbered 1, 2, 3 and 4 respectively. Find the probability that the sum of the two numbers drawn is odd. A. 6 1 B. 4 1 C. 3 1 D. 2 1 E. 3 2 (1999Q36) Probability Tom and Mary each throw a dart. The probability of Tom’s dart hitting the target is 3 1 while that of Mary’s is 5 2 . Find the probability of only one dart hitting the target. A. 15 2 B. 15 3 C. 15 7 D. 15 11 E. 15 13 Mathematics / HKCEE M.C. / 19 Probability / P.3
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(2000Q21) Probability Two fair dice are thrown. Find the probability that at least one “6” occurs.
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