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If a person purchases 15 of the 3,000 tickets sold in a raff
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02 Sep 2020, 09:42
02 Sep 2020, 09:42
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Question Stats:
91% (00:58) correct
8% (01:14) wrong based on 59 sessions
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If a person purchases 15 of the 3,000 tickets sold in a raffle that awards one prize, what is the probability that this person will not win?
(A) 0
(B) 1/200
(C) 1/2
(D) 199/200
(E) 1
(A) 0
(B) 1/200
(C) 1/2
(D) 199/200
(E) 1
Re: If a person purchases 15 of the 3,000 tickets sold in a raff
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02 Sep 2020, 09:43
02 Sep 2020, 09:43
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
For more theory and practice see our GRE - Math Book
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Re: If a person purchases 15 of the 3,000 tickets sold in a raff
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02 Sep 2020, 10:18
02 Sep 2020, 10:18
1
Carcass wrote:
If a person purchases 15 of the 3,000 tickets sold in a raffle that awards one prize, what is the probability that this person will not win?
(A) 0
(B) 1/200
(C) 1/2
(D) 199/200
(E) 1
(A) 0
(B) 1/200
(C) 1/2
(D) 199/200
(E) 1
Let's use the complement: P(Event A happening) = 1 - P(Event A not happening)
Given: P(person wins) \(= \frac{15}{3000}\)
So, P(person does NOT win) \(= 1 - \frac{15}{3000}\)
Simplify to get: P(person does NOT win) \(= 1 - \frac{1}{200}\)
Rewrite with common denominator to get: P(person does NOT win) \(= \frac{200}{200} - \frac{1}{200} = \frac{199}{200}\)
Answer: D
Cheers,
Brent
