One number for the whole lot

A batter's six scores: 20, 22, 24, 26, 28, 30. How is the batter playing? Give one number.

One good number is 25. Three scores are below it and three are above it.

A reading is one number you collected. One number can describe all the readings. It is a representative value.

Many numbers could describe them. Each one answers a different question.

In the lab, choose a number. Three scores should be above it and three below.

Try the lab to finish this lesson.