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From a hospital test, some of patients improved their sympto
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06 Dec 2015, 04:20
06 Dec 2015, 04:20
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Question Stats:
60% (03:11) correct
40% (02:17) wrong based on 5 sessions
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From a hospital test, some of patients improved their symptom and some of patients have developed side effects. If at least 10 patients have developed side effects, 60% of patients who improved their symptom have developed side effects and 90% of patients improved their symptom.
Column A
The number of patients improving symptom
Column B
The number of patients developing side effects
Please help me know Why the answer is A Thank you .
Column A
The number of patients improving symptom
Column B
The number of patients developing side effects
Please help me know Why the answer is A Thank you .
Re: From a hospital test, some of patients improved their sympto
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06 Dec 2015, 16:41
06 Dec 2015, 16:41
1
Expert Reply
maverickjin8 wrote:
From a hospital test, some of patients improved their symptom and some of patients have developed side effects. If at least 10 patients have developed side effects, 60% of patients who improved their symptom have developed side effects and 90% of patients improved their symptom.
Column A
The number of patients improving symptom
Column B
The number of patients developing side effects
Please help me know Why the answer is A Thank you .
Column A
The number of patients improving symptom
Column B
The number of patients developing side effects
Please help me know Why the answer is A Thank you .
Let there be 100 patients. Number of patients improving their symptoms 90.
Number of patients developing side effects after improving symptom is 60% of 90 = 54.
Number of patients not improving their symptoms at all 10. So even if they all developed side effect from the treatment the total number of patients with side effect would be 64.
Hence A is the right answer.
Could you please cite the source of the question?
Regards,
Thanks for the reply
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06 Dec 2015, 22:04
06 Dec 2015, 22:04
Thank you very much for the reply.
and the source is from a person who took the GRE test issued in 2011
if further details of the source of the question is neccessary I will provide it.
and the source is from a person who took the GRE test issued in 2011
if further details of the source of the question is neccessary I will provide it.
