document.write( "Question 398980: Suppose you are to analyze the ages of 300 randomly selected employees, ranging from 23 to 64.\r
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Algebra.Com's Answer #282605 by Edwin McCravy(20081)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "You didn't state how many classes you were to use.  Usually you\r\n" );
document.write( "want 6 or 7 classes.\r\n" );
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document.write( "If you want 6 classes, then\r\n" );
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document.write( "Subtract 64 - 23, get 41\r\n" );
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document.write( "Divide 41 by 6, get 6.833333333333, round UP to two places 6.84\r\n" );
document.write( "(even though the usual rounding would be down to 6.83, we must\r\n" );
document.write( "round UP to 6.84.)\r\n" );
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document.write( "To find the beginning of the first class, since you are to round to\r\n" );
document.write( "two decimal digits, subtract .01 from the least number: 23-.01 = 22.99\r\n" );
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document.write( "22.99 -- 29.83\r\n" );
document.write( "29.83 -- 36.67\r\n" );
document.write( "36.67 -- 43.51\r\n" );
document.write( "43.51 -- 50.35\r\n" );
document.write( "50.35 -- 57.19\r\n" );
document.write( "57.19 -- 64.03\r\n" );
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document.write( "If you want 7 classes, then\r\n" );
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document.write( "Subtract 64 - 23, get 41\r\n" );
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document.write( "Divide 41 by 7, get 5.857142857, round UP to two places 5.86.\r\n" );
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document.write( "To find the beginning of the first class, since you are to round to\r\n" );
document.write( "two decimal digits, subtract .01 from the least number: 23-.01 = 22.99\r\n" );
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document.write( "22.99 -- 28.85\r\n" );
document.write( "28.85 -- 34.71\r\n" );
document.write( "34.71 -- 40.57\r\n" );
document.write( "40.57 -- 46.43\r\n" );
document.write( "46.43 -- 52.29\r\n" );
document.write( "52.29 -- 58.15\r\n" );
document.write( "64.01 -- 69.87\r\n" );
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document.write( "So the class width is 6.84 if you want 6 classes and\r\n" );
document.write( "the class width is 5.86 if you want 7 classes.\r\n" );
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document.write( "Edwin
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