Use the normal distribution of SAT critical reading scores for which the mean is 510 and...

Use the normal distribution of SAT critical reading scores for which the mean is 510 and the standard deviation is 120.

Assume the variable x is normally distributed.

a) What percentage of the SAT verbal scores are less than 550?

b) If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 525?

a)Approximately of the SAT verbal scores are less than 550

b) You would expect that approximately SAT verbal scores would be greater than 52.

Expert Solution

orchestra answered 2 years ago

Use the normal distribution of SAT critical reading scores for which the mean is 509 and...

Use the normal distribution of SAT critical reading scores for which the mean is 509 and the standard deviation is 121. Assume the variable x is normally distributed. left parenthesis a right parenthesis What percent of the SAT verbal scores are less than 650? left parenthesis b right parenthesis If 1000 SAT verbal scores are randomly selected, about how many would you expect to be greater than 550?

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