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Mathematics, 27.11.2019 02:31 Vlop2780

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...
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