Mathematics, 29.10.2020 20:42
In a large section of a statistics class , the points for the final exam are normally distributed , with a mean of 72 and a standard deviation of 7. Grades are assigned such that the top 10 % receive A s , the next 20 % received B s , the middle 40 % receive C s the next 20 % receive D s , and the bottom 10 % receive F s Find the lowest score on the final exam that would qualify a student for an A , a B , a C , and a D.
