At one college, the distributions of GPA's is bell- shaped

Last updated: 7/19/2022

At one college, the distributions of GPA's is bell- shaped with a mean of 2.8 and a standard deviation of 0.4. According to the Empirical rule, about what percentage of students at the college have a GPA between 2.4 and 3.2? 99.74% 95.44% 84.13% 68.26%