document.write( "Question 1003711: Assume that a set of test scores is normally distributed with a mean of 120 and a standard deviation of 5. Use the 68-95-99.7 rule to find the following quantities.
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document.write( "a. The percentage of scores less than 120 is ____%. \n" );
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Algebra.Com's Answer #620363 by richard1234(7193) You can put this solution on YOUR website! The mean is 120 and it's normally distributed, right? Which means that the distribution is symmetric about 120.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Percentage of scores less than 120 is 50% \n" ); document.write( " \n" ); document.write( " |