Sat math scores have a bell-shaped distribution with a mean, Ask an Expert

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SAT Math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 116.

a) what percentage of SAT scores are between 399 and 631?
b) what percentage of SAT scores are less than 399 or greater than 631?
c) what percentage of SAT scores are greater than 747?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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