document.write( "Question 1175080: Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation of 17. Using the empirical rule, what percentage of IQ scores are between 87 and 121? \n" ); document.write( "

Algebra.Com's Answer #800609 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi  \r\n" );
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document.write( "Normal Distribution:   μ = 104 and  σ = 17  \r\n" );
document.write( "percentage of IQ scores are between 87 and 121? \r\n" );
document.write( "Each 17 from mean:  between z = -1  and z = 1\r\n" );
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document.write( "one  standard deviation from the mean accounts for about 68.2% of the set***** \r\n" );
document.write( "two standard deviations from the mean account for about 95.4%\r\n" );
document.write( "and three standard deviations from the mean account for about 99.7%.\r\n" );
document.write( "Important to Understand z -values as they relate to the Standard Normal curve:\r\n" );
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document.write( "Wish You the Best in your Studies.\r\n" );
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