In a history test, Andrew got 62%. For the whole class the mean mark was 64% and the median was 59%. Which average tells him whether he is in the top half or the bottom half of the class?

Do you know what median and mean are?

The median is the middle number. So if you have 5 students in your class and they got 30,45,65,70,90 then the median is 65%. In your case the median was 59% so half the class got below 59%. Since Andrew mark is 62% its greater than half the class so he is in the top half of the class