Robin surveyed 5 students from the choirs of 4 different schools. he asked them how many hours they practice singing each day.

school a: 3, 2, 1, 1, 2

school b: 2, 3, 4, 3, 3

school c: 1, 2, 1, 0, 1

school d: 2, 2, 1, 2, 3

the data for school has the highest center of distribution. the data for school has the lowest center of distribution.