Pictograph Statistics Example 4

Follow the full solution, then compare it with the other examples linked below.

Example 4

hard
You need to create a pictograph for this data: Red 18, Blue 27, Green 12, Yellow 9. Choose an appropriate key value and determine how many symbols each category needs.

Solution

  1. 1
    Step 1: Find a common factor. All values are divisible by 3, so choose each symbol = 3 items. Red: 18÷3=618 \div 3 = 6 symbols, Blue: 27÷3=927 \div 3 = 9 symbols, Green: 12÷3=412 \div 3 = 4 symbols, Yellow: 9÷3=39 \div 3 = 3 symbols.
  2. 2
    Step 2: Verify: no partial symbols are needed since all values divide evenly by 3. This makes the pictograph easy to read and accurate.

Answer

Key: each symbol = 3 items. Red: 6 symbols, Blue: 9 symbols, Green: 4 symbols, Yellow: 3 symbols.
When creating a pictograph, choosing a key value that divides evenly into all data values avoids the need for partial symbols and makes the graph more precise. Common factors of the data values are good choices for the key.

About Pictograph

A pictograph (or picture graph) displays data using pictures or symbols, where each picture represents a specific quantity. For example, if 🍎 = 5 apples, then 🍎🍎🍎 means 15 apples. A key (legend) always tells you what each symbol represents.

Learn more about Pictograph →

More Pictograph Examples

Example 1 easy

A pictograph shows the number of books read by four students. Each book symbol represents 2 books. A

Example 2 medium

A pictograph uses a star symbol where each star represents 5 stickers. If one row shows 3 full stars

Example 3 medium

A pictograph shows the number of goals scored by four teams. Each football symbol = 3 goals. Team W:

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