Probability and Statistics > Regression Analysis > Construct a Scatter plot

## Construct a Scatter plot: Overview

A **scatter plot **gives you a visual idea of what is happening with your data. Scatter plots are similar to line graphs. The only difference is a line graph has a continuous line while a scatter plot has a series of dots. Scatter plots in statistics create the foundation for** simple linear regression**, where we take scatter plots and try to create a usable model using functions. In fact, all regression is doing is trying to draw a line through all of those dots!

Watch the video or read on below:

If you want to construct a scatter plot by hand, read on for the steps. However, if you have access to some kind of technology (like Excel), it’s much easier! Follow a link to make a:

- SPSS Scatter plot
- Scatter plot in Minitab
- TI 89 Scatterplot
- Scatter plot in Microsoft Excel
- TI 83 Scatter plot

There are just three steps to creating a scatter plot by hand.

## Construct a Scatter plot: Steps

Sample question: create a scatter plot for the following data:

x | y |
---|---|

3 | 25 |

4.1 | 25 |

5 | 30 |

6 | 29 |

6.1 | 42 |

6.3 | 46 |

**Step 1:** *Draw a graph. Label the x- and y- axis. Choose a range that includes the maximums and minimums from the given data.* For example, our x-values go from 3 to 6.3, so a range from 3 to 7 would be appropriate.

**Step 2:** *Draw the first point on the graph. *Our first point is (3,25).

**Step 3:**. *Draw the remaining points on the graph.*

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Now these kinds of questions I could do all day. This information I can understamd without loosing my mind and trying to figure out where to start and where to end. We need more of these questions.

I can agree with Lisa, these problems I can do very easly, and its just self explanatory. and this example just makes it way better

I agree too!! I wish these were what kind of problems we had! THe exampli is great as well! This class has been over my head!!

Great example that makes it easier to understand the Scatter Plot. I love these because you can make sense of data that might otherwise be hard to see a pattern in! I absolutely love plots and graphs and visualization of data.

http://blog.thinkwell.com/2010/08/7th-grade-math-scatter-plots-and-free-worksheet.html

Thank you