document.write( "Question 1182014: Given the following data representing exam scores by four groups of students; explain why group 3
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\n" ); document.write( "\n" ); document.write( "Class: 1 2 3 4
\n" ); document.write( "Mean: 76 68 73 70
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Algebra.Com's Answer #812072 by Boreal(15235)\"\" \"About 
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Group 1 has the smallest sd, so it will likely have the smallest spread and the smallest range.
\n" ); document.write( "Group 3 has the second largest mean but also the second largest sd. One sd above the mean produces scores of 78.7, 75.5, 79.2, and 73.1
\n" ); document.write( "Two sd s above the mean, and the disparity only increases.
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