You are teaching your dog to sit. Every time you say "sit!" and the dog follows your command you give him a treat. This is an example of a _____

In the United States, about ____ percent of children saw a dentist for preventive care in the previous year.

A. 25 B. 50 C. 75 D. 100

The assigning of numbers to measurements according to certain rules is

called a. prediction b. point estimation c. matrix information d. measurement