Question

A quantitative section of the GRE is scored between 130–170, and the average score falls somewhere around 151. with a standard deviation of 12. Assuming these findings are approximately normal, answer the following.

1. What is the z-score for a GRE score higher than 160?

2. What proportion of students scores 152 or above

3. What proportion of students scores between 131 and 170?

4. What GRE score represents the 95th percentile?   

Use the Z-score table of Areas Under the Standardized Normal Distribution

Please round your Z score to the nearest Z table value. For example, round Z=1.2345 to Z=1.23.

Answer 1

Note :

Round z score to 2 or 4 decimals according to your answer