document.write( "Question 613646: Estimate the mean study time of all students taking an exam. Round answer to the nearest tenth of an hour, if necessary:\r
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Algebra.Com's Answer #386105 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi, 
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document.write( "Estimate the mean study time of all students taking an exam
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document.write( "18,7,10 ,13,12,16,5,20,21
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document.write( "18+7+10+13+12+16+5+20+21=122  Yes!
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document.write( " mean = 122/9 = 13.6 hr,  Rounded to the nearest tenth of an hour\r
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document.write( "5,7,10,12,,16,18,20,21 (median 13)
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