Statistics Help Bell shaped distribution

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SUMMARY

The discussion centers on calculating the percentage of IQ scores below 76, given a bell-shaped distribution with a mean of 104 and a standard deviation of 14. Using the empirical rule, which states that approximately 95% of data falls within two standard deviations of the mean, the calculation reveals that 76 is two standard deviations below the mean. Therefore, approximately 2.5% of IQ scores fall below 76, as this represents the lower tail of the distribution.

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Jazigirl
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Suppose that IQ scores have a bell shaped distribution with a mean of 104 and a standard deviation of 14. Using the empirical rule what percentage of IQ scores are less than 76? Please do not round your answer.

So far this is what i have

76 -104= -28

-28
__ = -2
14

*How do I obtain the percentage?
*When I get to this point I get lost can someone help me out please and thank you
 
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You use the "empirical rule"

"percentage less than 76" has been converted (by you, just now) into "percentage less than 2 standard deviations" ... you should have notes for the percentage within a certain number of standard deviations of the mean.
 

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