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Statistics

Collecting Data

Method Making Survey
To do the survey, follow these steps:
  1. Ask each student your question, like "What is your favorite pet?"
  2. Write down what each student says. You can:
    • Write their name next to their answer (e.g., "Emma: Dog").
    • Or use tally bars to count the answers (e.g., draw a tally mark for each "Dog").

Representing Data

Definition Pictograph
A pictograph uses pictures or symbols to show data.
Example
Favorite fruits
5
4
3
2
1
Lemon Orange Apple Cherry
  • Lemon: 1 student.
  • Orange: 4 students.
  • Apple: 5 students.
  • Cherry: 2 students.
Definition Bar Chart
A bar chart shows data with bars.
Example
  • Lemon: 1 student.
  • Orange: 4 students.
  • Apple: 5 students.
  • Cherry: 2 students.