Here are the midterm exam scores for a very small population of students. Student A: 94 Student B: 82 Student C: 76 Student D: 68 List all 6 possible SRS of size n= 2 and calculate the mean midterm score for each sample

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)