document.write( "Question 22161: 3. Sometimes, we can take a weighted approach to calculating the mean. Take our example of high temperatures in July. Suppose it was 98°F on 7 days, 96°F on 14 days, 88°F on 1 day, 100°F on 6 days and 102°F on 3 days. Rather than adding up 31 numbers, we can find the mean by doing the following:\r
\n" ); document.write( "\n" ); document.write( "Mean = ( 1 x 88 + 14 x 96 + 7 x 98 + 6 x 100 + 3 x 102) / 31\r
\n" ); document.write( "\n" ); document.write( "…where 1, 14, 7, 6, and 3 are the weights or frequency of a particular temperature’s occurrence. Then we divide by the total of number of occurrences.\r
\n" ); document.write( "\n" ); document.write( "Suppose we are tracking the number of home runs hit by the Boston Red Sox during the month of August:\r
\n" ); document.write( "\n" ); document.write( "Number of Games HRs Hit each Day
\n" ); document.write( "2 3
\n" ); document.write( "5 2
\n" ); document.write( "6 1
\n" ); document.write( "7 0 \r
\n" ); document.write( "\n" ); document.write( "Using the weighted approach, calculate the average number of home runs per game hit by the Sox.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #10709 by venugopalramana(3286) $\"\"$ $\"About$

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2 3
\n" ); document.write( "5 2
\n" ); document.write( "6 1
\n" ); document.write( "7 0
\n" ); document.write( "WHY DOUBT FOLLOW SAME PROCEDURE
\n" ); document.write( "(2*3+5*2+6*1+7*0)/(2+5+6+7)=19/20 \n" ); document.write( "

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