document.write( "Question 1037848: Find the mean and the standard deviation of the age (correct to 3 sig fig):
\n" ); document.write( "Age (x) c.c f
\n" ); document.write( "20\n" ); document.write( "30\n" ); document.write( "40\n" ); document.write( "50\n" ); document.write( "60\n" ); document.write( "\n" ); document.write( "Please help, I know what the mean and standard deviation is but I'm not sure what it wants me to find. 'The age'? The table I have is above. \n" ); document.write( "

Algebra.Com's Answer #652496 by stanbon(75887) $\"\"$ $\"About$

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Find the mean and the standard deviation of the age (correct to 3 sig fig):
\n" ); document.write( "Age (x) c.c f
\n" ); document.write( "20\n" ); document.write( "30\n" ); document.write( "40\n" ); document.write( "50\n" ); document.write( "60\n" ); document.write( "-----
\n" ); document.write( "Using the \"Mark\" of each interval as its representative value
\n" ); document.write( "mean = 39.667
\n" ); document.write( "std = 10.743
\n" ); document.write( "-----------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "------------- \n" ); document.write( "

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