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On average, a sharpshooter hits the target once every 3 shot
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14 May 2019, 00:26
14 May 2019, 00:26
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On average, a sharpshooter hits the target once every 3 shots. What is the probability that he will not hit the target until 4th shot?
(A) \(1\)
(B) \(\frac{8}{81}\)
(C) \(\frac{16}{81}\)
(D) \(\frac{65}{81}\)
(E) \(\frac{71}{81}\)
(A) \(1\)
(B) \(\frac{8}{81}\)
(C) \(\frac{16}{81}\)
(D) \(\frac{65}{81}\)
(E) \(\frac{71}{81}\)
Re: On average, a sharpshooter hits the target once every 3 shot
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10 Oct 2019, 12:34
10 Oct 2019, 12:34
5
The probability of not hitting the target is 2/3. Hence 2/3 for each bad shot and 1/3 for every good shot:
2/3*2/3*2/3*1/3 = 8/81
Answer B.
Regards.
2/3*2/3*2/3*1/3 = 8/81
Answer B.
Regards.
General Discussion
Re: On average, a sharpshooter hits the target once every 3 shot
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30 Sep 2023, 07:13
30 Sep 2023, 07:13
Hello from the GRE Prep Club BumpBot!
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
