document.write( "Question 1189156: For the data set: 21,24,19,32,15,43,38,39,\r
\n" ); document.write( "\n" ); document.write( "I don't understand how the lower quartile is 20 and how the upper is 35. Since the median would be (24+29)/2 = 26.5, wouldn't that mean Q1 = 19 and Q3 = 38? Please just explain that part!
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Algebra.Com's Answer #820411 by MathLover1(20855)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "21,24,19,32,15,43,38,39 \r
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\n" ); document.write( "To find the lower quartile of a set of data, we can find the median of the data and then find the median of the first half.\r
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\n" ); document.write( "\n" ); document.write( "15,19,21,24,......32,38,39,43\r
\n" ); document.write( "\n" ); document.write( "median=\"%2824%2B32%29%2F2=28\"\r
\n" ); document.write( "\n" ); document.write( "15,19....,21,24\r
\n" ); document.write( "\n" ); document.write( "Q1=\"%2819%2B21%29%2F2=20\"\r
\n" ); document.write( "\n" ); document.write( "32,38....,39,43\r
\n" ); document.write( "\n" ); document.write( "Q3=\"%2838%2B39%29%2F2=38.5\"\r
\n" ); document.write( "\n" ); document.write( "Interquartile Range: IQR = Q3 - Q1=\"38.5-20=18.5\"\r
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