Graphs: Frequency & Pictograph

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 pictograph?

Back

To read a pictograph, look at the symbols and count how many of each symbol are shown. Each symbol represents a specific quantity.

Front

If one symbol in a pictograph represents 2 items, how many items do 3 symbols represent?

Back

6 items (3 symbols x 2 items per symbol = 6 items).

Front

What is frequency in a graph?

Back

Frequency is the number of times a particular value or category appears in a data set.

Front

How do you find the total frequency in a graph?

Back

To find the total frequency, add up all the frequencies of each category.

Front

What does it mean if a pictograph has a half symbol?

Back

A half symbol usually represents half of the value that a full symbol represents.

Front

How can you compare two categories in a pictograph?

Back

You can compare two categories by looking at the number of symbols for each category and determining which has more or less.

Front

If 5 symbols represent 10 students, how many students does 1 symbol represent?

Back

2 students (10 students ÷ 5 symbols = 2 students per symbol).

Front

What is the purpose of using graphs like pictographs?

Back

Graphs like pictographs help to visually represent data, making it easier to understand and compare information.

Front

How do you determine how many more items one category has than another in a pictograph?

Back

Subtract the number of symbols in the smaller category from the number of symbols in the larger category.