Lesson

Can you use a picture graph to answer questions?

The pictograph shows the amount of hours a student spent this month doing homework for different subjects.

a

Which subject did the student do 5 hours of homework for?

Worked Solution

b

Which subject did the student do the least amount of homework for?

Worked Solution

Idea summary

Look at the **key** on a picture graph to help you understand what each image is representing.

This video shows shows how to construct a column graph to display data.

Amelia is looking at the cookbooks on the shelf at her grandparent's house. She counts how many there are of each type and put the results in the following table.

Type of Cookbook | Number of Cookbooks |
---|---|

\text{Baking} | 2 |

\text{Italian} | 3 |

\text{Quick Meals } | 2 |

\text{Gourmet} | 4 |

a

Amelia wants to draw a column graph of this information.

How many columns will she need to draw?

Worked Solution

b

Draw the column graph that matches the table of information.

Worked Solution

Idea summary

The height of the bars in a bar graph should match the numbers for each category in the table.

This video shows how to read and answer questions about a column graph.

Miss Rodd recorded her students' favourite pets in the column graph below.

a

Which type of pet is most popular?

Worked Solution

b

How many students picked a hamster as their favourite pet?

Worked Solution

c

How many students were surveyed in total?

Worked Solution

Idea summary

For column graphs:

- Check the scale of the graph. It may not always be 1.
- If there is no column drawn, it represents a value of 0.

selects appropriate methods to collect data, and constructs, compares, interprets and evaluates data displays, including tables, picture graphs and column graphs M