QI) A Doctor at a college noted that the grades of his students were normally distributed with a mean of 75 and a standard deviation of 10. The Doctor has informed his students that 6.3 percent of...

Extracted text: QI) A Doctor at a college noted that the grades of his students were normally distributed with a mean of 75 and a standard deviation of 10. The Doctor has informed his students that 6.3 percent of students received an A, while only 2.5 percent of his students failed the course and received F's. a) What is the minimum score needed to make an A? b) What was the maximum score among those who received an F? c) If there were 4 students who did not pass the course, how many students took the test? Note: interpret all your results.