Types of graphs
Circle graph: A graph that is made by dividing a circle into sections that represent parts of a whole. Each part adds up to 100%.
We use them for multiple reasons
When we are displaying the relative frequency of variables
Used with one set of data
Show how categories represent part of a whole data set for one variable
Bar graph: A chart that plots data using rectangular bars or columns
We use them for…
When we want to compare categories between different groups
Used to display 1 data set/ 1 variable
Used with discrete data
Line plot: A graph that displays data as points or symbols (checkmarks, x’s) above a number line. Also, the dots are not connected.
It is used for….
Showing the frequency of data
Quick and simple way to organize data with smaller values
Display data with one variable
Multiple-Bar Graph: A graph that shows the relationship between diferent sets of data and the bars are presented beside each other for clear comparisons.
Mutltiple-Bar graphs are used for…
To display the relationship between two sets of data. For example - gender differences or adults vs youth.
Display data with one variable
Used for qualitative and discrete data
Scatter plot: A graph that displays data points for two continous variables and both the y and x axis represent a different variable.
Used for….
When we have data with two variables
Often used to display data represented in a table of values
Used to show the relationship between two variables
Histogram: A graph that is similar to a bar-graph that shows frequencies for different intervals.
Used for….
When the x-axis uses numbers (intervals). For example - age rangers
Display data with one variable
Broken-Line Graph: A graph that displays dats as points that are connected with a line
Used for…
To track changes over periods of time
Used with continous data