16 a b Which grade is better A 78 on a test whose mean is 72

Last updated: 9/15/2023

16 a b Which grade is better A 78 on a test whose mean is 72 and a standard deviation of 6 5 or an 83 on a test whose mean is 77 and standard deviation is 8 4 A 83 B 78 Part B The grades on a geometry midterm are normally distributed with 70 and a 2 0 Find the z score for David if he gets a score of 68 on the exam Type your result in the empty box provided below Answer