document.write( "Question 1181706: Data was collected for 300 fish in the North Atlantic.
\n" ); document.write( "The length of the fish (in mm)is summarized in the GFDT below.
\n" ); document.write( "Lengths (mm) Frequency
\n" ); document.write( " 80-89 1
\n" ); document.write( " 90-99 16
\n" ); document.write( " 100-109 71
\n" ); document.write( " 110-119 108
\n" ); document.write( " 120-129 83
\n" ); document.write( " 130-139 18
\n" ); document.write( " 140-149 3\r
\n" ); document.write( "\n" ); document.write( "What is the class boundary between the third and fourth classes?
\n" ); document.write( "class boundary= \n" ); document.write( "
Algebra.Com's Answer #849979 by CPhill(1959)\"\" \"About 
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The third class is 100-109 mm, and the fourth class is 110-119 mm.\r
\n" ); document.write( "\n" ); document.write( "The class boundary between these two classes is the midpoint between the upper limit of the third class and the lower limit of the fourth class.\r
\n" ); document.write( "\n" ); document.write( "Class boundary = (109 + 110) / 2 = 219 / 2 = 109.5 mm\r
\n" ); document.write( "\n" ); document.write( "So, the class boundary between the third and fourth classes is 109.5 mm.
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