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September 18th, 2016, 10:53 AM   #1
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Frequency Distribution

I'm stumped! Any help from you brainiacs would be greatly appreciated

For the frequency distribution of GPA's of a group of freshmen, and the interquartile range is 1.22. 75% of the freshmen's GPA's fall below
(a) 3.25
(b) 3.35
(c) 3.45
(d) can't tell unless the distribution is symmetric
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September 19th, 2016, 01:22 AM   #2
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Is this all the information we've got? If not, I think the answer is (d). For all we know, the top 25% could be all geniuses who get 4s (and the bottom 25% would have got 2.78 or below).
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