Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 110. Assume the variable x is normally distribute (a) What percent of the SAT verbal scores are less than 625? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 575? (a) Approximately % of the SAT verbal scores are less than 625. (Round to two decimal places as needed.) (b) You would expect that approximately SAT verbal scores would be greater than 575. (Round to the nearest whole number as needed.)

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 110. Assume the variable x is normally distributed.
(a) What percent of the SAT verbal scores are less than 625?
(b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 575?
(a) Approximately
(Round to two decimal places as needed.)
% of the SAT verbal scores are less than 625.
(b) You would expect that approximately
SAT verbal scores would be greater than 575. (Round to the nearest whole number as needed.)
Transcribed Image Text:Use the normal distribution of SAT critical reading scores for which the mean is 514 and the standard deviation is 110. Assume the variable x is normally distributed. (a) What percent of the SAT verbal scores are less than 625? (b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 575? (a) Approximately (Round to two decimal places as needed.) % of the SAT verbal scores are less than 625. (b) You would expect that approximately SAT verbal scores would be greater than 575. (Round to the nearest whole number as needed.)
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