Question

The following dot plots describe the test scores on Mr. Santos final exam.

Answer 1

second-period class average:

55+70+450+480+170+270+95 = 1590

1590/20 = 79.5

sixth-period class average:

65+225+480+595+270+190 = 1825

1825/20 = 91.25

on average, students in the sixth period class scored higher