document.write( "Question 255708: The mean of the times it takes a commuter to get to work in Baltimore is 29.7 minutes. If the standard deviation is 6 minutes, within what liits would you expect approximately 68% of the times to fall? Assume the distribution is approximately bell-shaped. \n" ); document.write( "
Algebra.Com's Answer #187963 by drk(1908)\"\" \"About 
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68% is one standard deviation above and one standard deviation below the mean.
\n" ); document.write( "So, we take 29.7 + and - 6 and we get
\n" ); document.write( "23.7 to 35.7 minutes in 68% of our data.
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