document.write( "Question 609900: The amount of monthlyt phone bill is normally distributed with a mean of $60 and a standard deviation of $12, 68% of phone bill are between $______ and $____ \n" ); document.write( "

Algebra.Com's Answer #384014 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "monthlyt phone bill is normally distributed with a mean of $60 and a standard deviation of $12
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document.write( "Note:one  standard deviation from the mean accounts for about 68.2% of the set 
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document.write( "68% of phone bill are between $48 and $72 \n" );
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