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Updated on: 02 Nov 2021, 08:02
Originally posted by COolguy101 on 02 Nov 2021, 07:19.
Last edited by COolguy101 on 02 Nov 2021, 08:02, edited 1 time in total.
Last edited by COolguy101 on 02 Nov 2021, 08:02, edited 1 time in total.
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
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Question Stats:
28% (00:53) correct
72%
(01:17)
wrong
based on 18
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A and B are independent and the probability that Event A occurs is the same as that of the probability that Event B occurs (both equals to 0.3). What is the probability that Event A occurs when Event B does not occur.
A. 0.2
B. 0.3
C. 0.35
D. 0.40
E. 0.41
Post a detailed solution and get kudos !
A. 0.2
B. 0.3
C. 0.35
D. 0.40
E. 0.41
Post a detailed solution and get kudos !
This Question is Locked Due to Poor Quality
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02 Nov 2021, 07:34
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COolguy101
What is the source? Events can be "mutually exclusive", or they can be "independent", but "mutually independent" isn't a thing in math.
If the events are "independent", then A and B are unrelated, so it makes no difference if B occurs or not -- the probability A occurs is 0.3. As a word problem, the question would become something like: Amy will pick a random integer from 1 through 10, and Bita will pick a random integer from 1 through 10. What is the probability Amy will pick one of the numbers 1, 2 or 3 if Bita does not pick 1, 2 or 3? It makes no difference what Bita picks.
If, instead, the question means to say that the events are "mutually exclusive", then the two events cannot both occur. Then the question becomes, as a word problem, something like this: Carlos will pick a random integer from 1 through 10. What is the probability Carlos picks one of the numbers 1, 2 or 3, if you know that Carlos does not pick one of the numbers 8, 9 or 10? Then the answer is 3/7 ~ 0.43, which isn't among the choices.
02 Nov 2021, 08:03
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IanStewart
Sorry sir, fixed a typo! sorry for the inconvenience.
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