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18 votes
Todd forgot the first two numbers of his locker combination.The number can be any number 1 through 6. What is the probability that he will guess the first number correctly and the second number incorrectly

User Boris Belenski
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1 Answer

14 votes
14 votes

Todd forgot the first two numbers of his locker combination. The number can be any number 1 through 6. What is the probability that he will guess the first number correctly and the second number incorrectly?

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The probability that he will guess the first number correctly and the second number incorrectly

1/6 (the first number correctly)

5/6 (the second number incorrectly)

1/6 * 5/6 = 5/36

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Answer

The probability that he will guess the first number correctly and the second number incorrectly is 5/36 = 0.1389 = 13. 89%.

User Charlie Wu
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