According to the z distribution, what proportion of SAT verbal scores falls between 500 and 600?
A).3413
B).2500
C).5000
D).7500

Question

Quizplus · Accepted Answer

The SAT verbal scores are typically distributed with a mean of 500 and a standard deviation of 100. A score of 600 is one standard deviation above the mean. According to the 68-95-99.7 rule (or empirical rule) for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean. Therefore, since 500 is the mean and 600 is one standard deviation above the mean, about 34% (or .3413 when expressed as a proportion) of the scores fall between 500 and 600.

According to the Z Distribution, What Proportion of SAT Verbal