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Mathematics
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The following data was obtained from a study of the IQ in college students:

 Mean: 107 

 Median: 105

 Mode 102

 First Quartile: 95

 Third Quartile: 115 

 80th Percentile: 117

 

About what percent of those surveyed had an IQ of less than 95?

Mar 21st, 2015

The first quartile is the number such that 25% of the data is less than it. Here the first quartile is 95.

So, 25% of those surveyed had an IQ of less than 95.

Mar 21st, 2015

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