### Home > CAAC > Chapter 1 > Lesson 1.2.1 > Problem 1-45

1-45.

The average is the sum of all the scores divided by the number of scores.

Compare this average with her scores. Does it seem right? Why or why not?

See part (a) for the definition of average.

How did a 75% instead of a 0% change her average? Does it seem like the new average is better? How?