Understanding Percent Bar Graphs

What is the primary purpose of a percent bar graph?

• To display numerical data

• To show percentages or relative frequencies

• To compare two different data sets

• To illustrate trends over time

Which of the following is NOT a feature of a percent bar graph?

• It can be color-coded

• It can be vertical

• It can display actual numbers of people

• It can have a key

In the Morton Middle School survey, what percentage of students chose debate as the new elective?

• 50%

• 30%

• 20%

• 100%

How do you calculate the percentage of students who chose drama in the Morton Middle School survey?

• Subtract 30 from 50

• Add 30 to 50

• Divide 50 by 30

• Multiply 30 by 50

What is the first step in creating a percent bar graph from survey data?

• Calculate the total number of responses

• Write the title of the graph

• Draw the bars on the graph

• Color code the categories

When calculating the percentage for cheese pizza, what is the simplified fraction of 60 over 240?

• 1/5

• 1/4

• 1/3

• 1/2

What percentage of students chose pepperoni pizza as their favorite?

• 25%

• 55%

• 15%

• 5%

How do you determine the stopping point for the hamburger section on the percent bar graph?

• Add 15 to 80

• Divide 80 by 15

• Subtract 15 from 80

• Multiply 15 by 80

What is the final percentage for the veggie section on the percent bar graph?

• 12%

• 5%

• 10%

• 20%

What should you do if the percentages on your bar graph do not add up to 100%?

• Change the data set

• Add more categories

• Recalculate the percentages

• Ignore the error