Question

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.61 and a standard deviation of 0.45

Using the empirical rule, whatpercentage of the students have grade point averages that are at least 3.96? Please do not round your answer

Answer 1

Below.

= 99.7%

= 100 - 99.7%/2

= 0.3/2

= 0.15%

100% - 0.15%

= 99.85%