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For a certain year, the mean math SAT score nationally was 527 with a standard deviation...

For a certain year, the mean math SAT score nationally was 527 with a standard deviation of 86. Scores were normally distributed.

#4. Which of the following math SAT scores are between 1 and 2 standard deviations below the mean.

A.

350
B.

500
C.

450
D.

400
math   Statistics-And-Probability   
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