In a normally distributed list whose mean and standard deviation are 50 and 10 respectively, which of the following numbers would be at least in the 97th percentile?

GRE Quant Problem Solving
1

n a normally distributed list whose mean and standard deviation are 50 and 10 respectively, which of the following numbers would be at least in the 97th percentile?

a. 65

b. 70

c. 75

d. 80

e. 85

The correct answer is b, c, d, e. I choose a.

Question is asking that what number should be in the 97th percentile. Does it not mean mean that we need numbers that come below 97% percentile ?

2

“at least in the 97th percentile”

3

I’m not totally able to understand it. can you please explain it bit more ? as in what is “at least” signifying here ?

4

“at least in the 97th percentile” means your value falls at the 97th percentile mark or higher (i.e., in the 98th, 99th, or 100th percentile).