Use the normal distribution of SAT critical reading scores for which the mean is 513513 and the standard deviation is 109109. Assume the variable x is normally distributed. left parenthesis a right parenthesis(a) What percent of the SAT verbal scores are less than 550? left parenthesis b right parenthesis(b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 525?
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left parenthesis a right parenthesis(a)
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What percent of the SAT verbal scores are less than
550?
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left parenthesis b right parenthesis(b)
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If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than
525?
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Expert Answer
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