A teacher put all her students' quiz scores up on the dot plot below.

Question

QUIZ SCORES
60….
65..
70
75..
80.
85……
90.
95..
100…
Points
What was the range of test scores?

Answer 1

The range of test scores is 40 points, calculated by subtracting the lowest score (60) from the highest score (100):
100 - 60 = 40.