11.1+Paired+Data

Section 11.1 - Paired Data
Paired data is two pieces of information that belong together, and probably in a specific order.

Paired data is the same concept used to create line and bar graphs, but will become even more specific here. Consider the following information from the previous chapter:



There are two pieces of information written side by side in the table. We will write them in parentheses, separated by a comma.

(Angie, 12) (Crystal, 3) (McKell, 5)

And so on. Suppose we switched the order of data and wrote it as (27, Lacy). In this case, it would still make sense because it is clear which is the player's name and which the number of points.

However, what would happen if both pieces of data were numbers? What if the players' numbers were listed instead of the names? If you had a lot of paired data that looked like (8,12), how would you know which number goes on the bottom axis of the graph and which goes on the left axis?
 * Rule: In paired data, the first number is always the bottom axis, the second number is always the left axis! **

The axes are named X and Y, so the data is always in the form: ( x, y )

**Where to from here?**
11.1 Paired Data 11.2 Like a Grid 11.3 Points 11.4 Linear Equations Chapter Eleven Summary Chapter Eleven Homework