If the average grade on an exam was 75% and the standard deviation was 4%, what would the three uper limit intervals be for the given normal curve by the empirical rule? O 72, 77, and 90 O 79, 83, and 87 O 83, 87, and 91 O 75, 79, and 83

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A: Please Give Me A Thumsup. Ans

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A: Given data,n=16x=67s=7.509

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A: Here we will use Excel command for Normal distribution 

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