1. The average score of a statistics class was F1 with a standard deviation of E. a. 1lr"l."hat is the z score of a student with a grade of 68? [2.5 pts} b. 1lr'll'hat is the z score of a student with a grade of St]? [2.5 pts} 2. Using the same data in #1 answer the following: a. Approximately 68% {one standard deviation} of the scores are between and (2.5 p18) b. Approximately 95% {two standard deviation} of the scores are between and (2-5 P18)