3.15ab: Graphs and Data

Front

What is a pictograph?

Back

A pictograph is a graph that uses pictures or symbols to represent data. Each picture represents a certain number of items.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height of the bars to see how much of each category is represented. The taller the bar, the more items it represents.

Front

What does it mean when a color is '5 times as popular' as another?

Back

It means that for every one item of the less popular color, there are five items of the more popular color.

Front

What is the purpose of a table in data representation?

Back

A table organizes data into rows and columns, making it easier to read and compare different categories.

Front

How can you determine which category has the most items in a graph?

Back

You can determine which category has the most items by looking for the tallest bar or the highest point on the graph.

Front

What does it mean to 'match data' to a pictograph?

Back

To match data to a pictograph means to connect the numbers or categories in the data to the corresponding pictures or symbols in the pictograph.

Front

What is a line graph used for?

Back

A line graph is used to show changes over time. It connects data points with a line to illustrate trends.

Front

How do you find the difference between two values in a graph?

Back

To find the difference, subtract the smaller value from the larger value.

Front

What is a key in a pictograph?

Back

A key explains what each picture or symbol represents in terms of quantity.

Front

What does it mean if a graph shows 'more students like dogs than birds'?

Back

It means that the number of students who prefer dogs is greater than the number of students who prefer birds.