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10 Aug 2009, 01:42
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Q:
The members of the newest recruiting class of a certain military organization are taking their physical conditioning test, and those who score in the bottom 16 percent will have to retest. If the scores are normally distributed and have an arithmetic mean of 72, what is the score at or below which the recruits will have to retest?
(1) There are 500 recruits in the class
(2) 10 recruits scored 82 or higher
I took this question from Princeton Review 2008. I answered E which is not correct (the key is C)
anyone please suggest on this. thx!
The members of the newest recruiting class of a certain military organization are taking their physical conditioning test, and those who score in the bottom 16 percent will have to retest. If the scores are normally distributed and have an arithmetic mean of 72, what is the score at or below which the recruits will have to retest?
(1) There are 500 recruits in the class
(2) 10 recruits scored 82 or higher
I took this question from Princeton Review 2008. I answered E which is not correct (the key is C)
anyone please suggest on this. thx!
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