16 Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 510 and a standard deviation of 128. Use the XXXXXXXXXXRule to find the percentage of people taking the...

Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 510 and a standard deviation of 128.
Use the 68-95-99.7 Rule to find the percentage of people taking the test who score between 254 and 766.