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This is how Edward’s Lotteries work. First, 9 different numb
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08 May 2019, 10:07
08 May 2019, 10:07
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Question Stats:
48% (01:28) correct
52% (01:25) wrong based on 50 sessions
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This is how Edward’s Lotteries work. First, 9 different numbers are selected. Tickets with exactly 6 of the 9 numbers randomly selected are printed such that no two tickets have the same set of numbers. Finally, the winning ticket is the one containing the 6 numbers drawn from the 9 randomly. There is exactly one winning ticket in the lottery system. How many tickets can the lottery system print?
(A) \(9P_6\)
(B) \(9P_3\)
(C) \(9C_9\)
(D) \(9C_6\)
(E) \(6^9\)
(A) \(9P_6\)
(B) \(9P_3\)
(C) \(9C_9\)
(D) \(9C_6\)
(E) \(6^9\)
Re: This is how Edward’s Lotteries work. First, 9 different numb
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23 Aug 2019, 06:43
23 Aug 2019, 06:43
1
Carcass wrote:
This is how Edward’s Lotteries work. First, 9 different numbers are selected. Tickets with exactly 6 of the 9 numbers randomly selected are printed such that no two tickets have the same set of numbers. Finally, the winning ticket is the one containing the 6 numbers drawn from the 9 randomly. There is exactly one winning ticket in the lottery system. How many tickets can the lottery system print?
(A) \(9P_6\)
(B) \(9P_3\)
(C) \(9C_9\)
(D) \(9C_6\)
(E) \(6^9\)
(A) \(9P_6\)
(B) \(9P_3\)
(C) \(9C_9\)
(D) \(9C_6\)
(E) \(6^9\)
9 numbers, choose 6 of them. 9C6. D.
Re: This is how Edward’s Lotteries work. First, 9 different numb
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10 Sep 2019, 19:44
10 Sep 2019, 19:44
Can someone explain this? I thought it would be 9P6 since it states that "Tickets with exactly 6 of the 9 numbers randomly selected are printed such that no two tickets have the same set of numbers.
