The table below shows the number of students in four schools with grade
point averages in various ranges. the grade point averages of the students in
which school represent a u-shaped distribution?
school a school b school c school d
greater than 1.5 but less than 2.0 15 82 22 19
greater than 2.0 but less than 2.5 43 46 39 57
greater than 2.5 but less than 3.0
81
greater than 3.0 but less than 3.5
50
greater than 3.5 but less than 4.0 12 78 27
nalool
59
47
17