Question

Ortencia made the following grades on her tests: test #1, 90; test #2, 80; test #3, 95; test #4, 90; test #5, 85. She wants to plot her progress on a coordinate plane where the test number is on the x-axis and the test grade is on the y-axis.
What is the range?

Answer 1

The range is the highest number to the lowest number. so 80 and 95 with 15 point in between