15.3 and 15.4 Bar Graphs

Trevor recorded the skateboards that were sold last month in a frequency table. He will display the data in a bar graph. How many bars will the graph have?

• 3 bars

• 10 bars

• 4 bars

• 8 bars

Analyze

Suppose you are completing the bar graph. Which scale is best?

• 1

• 2

• 12

• 10

Multi-Step

Brandy graphed the data correctly. Which statement about the graph is true?

• The bar for black is twice as tall as the bar for blue.

• The bar for black is twice as tall as the bar for red.

• The bar for blue is the tallest bar.

• The bar for blue is the shortest bar.

Marcy is making a bar graph of the data in the frequency table. What scale should she use?

• 2

• 25

• 5

• 1

Leon makes a bar graph of the favorite cheese data in the frequency table. How many bars will the graph have?

• 12 bars

• 3 bars

• 4 bars

• 2 bars

Felicia makes a bar graph of the favorite citrus fruit data in the frequency table. Where will the bar for tangerine end?

• 12

• 18

• 20

• 3

Which scale is the best choice for completing the graph?

• 5

• 2

• 4

• 1

Multi-Step

The number of books the bookstore donates to a library is one fourth the total number of books sold. How many books are donated to a library?

• 95

• 120

• 30

• 40

Multi-Step

If the data are graphed correctly, which statement is true?

• The bar for new books is the shortest bar.

• The bar for e-books is taller than the bar for new books.

• The bar for used books is twice as tall as the bar for new books.

• The bar for used books is more than twice as tall as the bar for e-books.

The teachers at Marty’s school are in a pasta-cooking contest. The bar graph shows the amounts of sauce they use in their recipes. What is the difference between the greatest and least amounts of sauce?

• 7 cups

• 2 cups

• 1 cup

• 6 cups