Mr.

Young’s

Class

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Web Page

Do you really know when you used which graph with the data you have?

This website will help you get a better understanding of the different types of graphs and help you to know when to use which graph determining the type of data you have.

There are many types of graphs, the most common ones include:

· Bar

· Line

· Scatter Plot

· Pie

· Histogram

Bar Graph

Bar graphs are a very good way to show results that are one time, that aren't continuous - especially data such as surveys and inventories. Below we have placed a graph for you to look at. Notice that in this graph each column is labeled. These graphs are helpful when needing to know which Item is favored or least favored.

Line Graph

Line graphs are used to represent data or sets of data that were gathered over a period of time. The data is then plotted on a graph with standard intervals of time. Then you have a line connecting all of the points in the correct order. People most commonly use this type of graph to show how a business is doing or to show growth or decay. After making a line graph you will be able to notice

Scatter Plot

A scatter plot is a graph consisting of a collection of points meant to show the relationship between one variable plotted on the vertical or Y axis and another variable given on the horizontal or X axis.

Pie Graph

A pie graph is also known as a circle graph people use these type of graphs are good for getting a good idea of percents. These graphs are particularly good illustrations when considering how many parts of a whole are in question. The pie chart is divided very much as a baker’s pie would be into slices that represent the proportional amounts of the whole. It is also helpful to shade the different sections different colors, to distinguish the size of the section.

Histogram

Histograms look very similar to bar graphs this is why many people mix them up. The main difference between the two would be, that bar graphs are not made up with both lines being numbers. Instead it uses either objects or people.

Here is some data that we took and put the data in our calculator to make a histogram.

DATA:

Number	Data
1	10
2	6
3	6
4	6
5	20
6	20
7	3
8	15
9	14
10	14

HISTORGRAM:

This website was made by Brandy Gulley and Haley Weaver. The purpose of this website was to give everyone one who reads it a better understanding of graphs. This website was made for an assignment in our Algebra II class. If you would like any other questions answered then feel free to contact our teacher Mr. Young at dyoung@fayar.net.

Other Related Websites:

http://people.freenet.de/Emden-Weinert/graphs.html

http://www.whidbey.net/ohms/linegraphs.html

http://www.shodor.org/interactivate/lessons/sm3.html

http://cstl.syr.edu/fipse/TabBar/Coverpg.htm

http://www.shodor.org/interactivate/discussions/sd4.html

http://www.ncsu.edu/labwrite/res/gt/gt-bar-home.html

http://mainland.cctt.org/mathsummer/JosephBond/bargraphs/bargraphs_std.htm

http://www.twingroves.district96.k12.il.us/ScienceInternet/ChartsGraphs.html

http://user1.stritch.edu/~dienerd/perpro/graphs.html

http://www.ncsu.edu/labwrite/res/gh/gh-bargraph.html