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Difficulty:
65%
(hard)
Question Stats:
44% (02:08) correct
56%
(03:35)
wrong
based on 9
sessions
History
Date
Time
Result
Not Attempted Yet
A medical student studying anatomy records the average length of human eye lashes. Her sample of subjects includes both men and women in a ratio of two to three. Both the male and female samples have a normal distribution. Her study shows that two percent or fewer of men have eyelashes shorter than 0.35 cm and that two percent or fewer of women have eyelashes shorter than 0.67 cm. If men have an average eyelash length of 0.6 cm and women have an average length of 0.79 cm, what percentage of all subjects has an eyelash length greater than 0.85 cm?
2%
7.3%
10.4%
16%
18%
2%
7.3%
10.4%
16%
18%
Archived Topic
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16 Apr 2015, 10:19
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deya
Normal distribution is NOT tested on the GMAT.
Topic locked.
P.S. Please read rule 3: rules-for-posting-please-read-this-before-posting-133935.html Thank you.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
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