Understanding Bar Graphs

The video tutorial explains how to create a bar graph from a data table showing the favorite colors of a class of third graders. It details how to interpret the table, understand the graph's axes, and plot bars for each color based on the number of students who prefer them. The vertical axis is scaled by threes, and the tutorial walks through plotting bars for blue, green, red, and yellow, corresponding to the number of students who favor each color.

What does the first column in the data table represent?

• The grade level

• The number of students

• The favorite color

• The age of students

How is the vertical axis of the bar graph scaled?

• By tens

• By twos

• By threes

• By fives

Which axis represents the colors in the bar graph?

• Horizontal axis

• None of the above

• Diagonal axis

• Vertical axis

How many students prefer the color blue?

• Three

• Nine

• Fifteen

• Six

What is the height of the bar for students who prefer green?

• Six units

• Three units

• Nine units

• Fifteen units

Which color has a bar height of nine units?

• Yellow

• Red

• Green

• Blue

How many students prefer the color yellow?

• Three

• Fifteen

• Six

• Nine

What does the bar graph represent?

• The favorite colors of students

• The number of students in each grade

• The age of students

• The number of students who like sports