3. In August 2015, the mean and the standard deviation on the TOEFL score for all people taking the exam were 450 and 116, respectively. What percentage of students would you expect to have a score 610 or less? (20 points)
3. In August 2015, the mean and the standard deviation on the TOEFL score for all people taking the exam were 450 and 116, respectively. What percentage of students would you expect to have a score 610 or less? (20 points)