Author Question: A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is ... (Read 33 times)

azncindy619 · **on:** Jun 19, 2018

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90 . The scores are normally distributed. The proportion of scores between 300 and 400 is _________.

a. 0.3665 c. 0.8533
b. 0.4868 d. 0.1203

Question 2

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90 . The scores are normally distributed. The raw score that lies at the 90th percentile is _________.

a. 615.20 c. 616.10
b. 384.80 d. 383.90