Ideally, we hope to treat data that is missing from our analysis as "missing at random." In which of the following scenarios would it be most reasonable to treat the non-surveyed students as "missing at random" from a survey of college students about their opinions on closing the student pharmacy, which we hope will represent student opinions on the issue? Eighty students randomly chosen as they were walking past the Student Health Services building Seventy students chosen by the student government as a representative group. Ninety students chosen from a shuffled list of all students Sixty students who have recently filled prescriptions at the pharmacy Ideally, we hope to treat data that is missing from our analysis as "missing at random." In which of the following scenarios would it be most reasonable to treat the non-surveyed students as "missing at random" from a survey of college students about their opinions on closing the student pharmacy, which we hope will represent student opinions on the issue? Eighty students randomly chosen as they were walking past the Student Health Services building Seventy students chosen by the student government as a representative group. Ninety students chosen from a shuffled list of all students Sixty students who have recently filled prescriptions at the pharmacy