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

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?