Question: Scores on a standardized test are approximately normally distributed with a mean of 460 and a standard deviation of 80. a. What proportion of the

Scores on a standardized test are approximately normally distributed with a mean of 460 and a standard deviation of 80.

a. What proportion of the scores are above 550?

b. What is the 35th percentile of the scores?

c. If someone’s score is 600, what percentile is she on?

d. What proportion of the scores are between 420 and 520?

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