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There are 10 cards. They are numbered: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18. One card is randomly picked. What is P(prime number)?

There are 10 cards. They are numbered: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18. One card is randomly picked. What is P(prime number)?
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There are 10 cards. They are numbered: 9, 10, 11, 12, 13, 14, 15, 16, 17, 18. One card is randomly picked. What is P(prime number)?

User Miara
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2 Answers

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13, and 17 are the prime numbers
User Lambsubstitute
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13 and 17 only are prime
User Faly
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