Home - Delaware County Comm x () MyLab Math Assignments X Take a Test - Brittney K Mccoy X + C 0 mathxl.com/Student/PlayerTest.aspx?testid=232742722 A MAT 121 Introduction to Probability and Statistics 14 ZO1 Baig Brittney K Mccoy & | 08/12/21 11:17 AM = Test: FINAL Question 1 This Test: 35 pts possible Submit Test Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students, B's to the next 25%, C's to the next 40%, D's to the next 16%, and F's to the bottom 9% What is the bottom cutoff for a D grade? Round your answer to the nearest whole number. OA. 65 O B. 58 OC 62 OD. 56