Question: An instructor in a large lecture class found, at the end of the semester, that the total point distribution in his class was approximately Normal,

An instructor in a large lecture class found, at the end of the semester, that the total point distribution in his class was approximately Normal, with a mean of 530 and a standard deviation of 80. About what percent scored between 490 and 590?

30.9%

77.3%

46.5%

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