18.104.22.168.3 - Minitab Express: Bar Charts
The following data set (from College Board) contain the mean SAT scores for each of the 50 states and Washington, DC, as well the participation rates and geographic region of each state.
MinitabExpress – Bar Chart (Raw Data)
To create a bar graph in Minitab Express:
- Open the data set
- On a PC or Mac: Select Graphs > Bar Chart
- Use the default from the drop down Bars represent of Counts of unique values in a categorical variable
- Select Simple
- Double click the variable Region in the box on the left to insert the variable into the Categorical variable box
- Click OK
This should result in the bar graph below:
Select your operating system below to see a step-by-step guide for this example.
Summarized Data Section
In the examples above raw data were used. In other words, the Minitab Express file consisted of one row for each case. We can also use Minitab Express to construct a bar chart with summarized data, for example, if you had data in a frequency table. To do this, in the third step shown above you will change the dropdown of Bars represent to Summarized values for each category in a table. You will still select Simple. The Summary variable will be the numerical values and the Categorical variable will be the names of the categories.