Which type of doctor treats the largest range of ailments? A. anesthesiologist B. neurologist C. pediatrician D. psychiatrist Please select the best answer from the choices provided. A B C D

On a test the graders have a mean of 77 and a standard deviation of 8. if we can approximate the distribution of these graders by a number distribution what percent of the students. a) scores higher than 77? b) should pass the test (grades > 60)? c) should fail the test (grades < 60)?