📊 Part 1: Understanding Data Collection

1. What does "census" mean when collecting data?

Asking some people

Asking everyone

Asking no one

2. What does "sampling" mean when collecting data?

Asking everyone

Asking a small group of people

Guessing the answer

3. Which advantages belong to a census? (Tick all that apply)

Gets information from everyone

Very quick to do

Complete and accurate data

Takes less effort

4. Which advantages belong to sampling? (Tick all that apply)

Faster to collect

Asks everyone

Less work to organise

Always 100% accurate

📝 Part 2: Collecting and Organising Data

5. Your teacher asks 5 students about their favourite sport. Complete the tally table below:

Results: Football, Basketball, Swimming, Football, Tennis

Sport	Tally Marks	Total
Football	_____________	____
Basketball	_____________	____
Swimming	_____________	____
Tennis	_____________	____

6. Is the data collection in Question 5 a census or sampling? Explain your answer.

7. You want to find out the favourite colour of students in your school. Would you use census or sampling? Why?

8. Circle the best method for each situation:

a) Finding favourite pets of your class of 25 students: Census / Sampling

b) Finding favourite food of all 500 students in your school: Census / Sampling

c) Finding how many students wear glasses in your class: Census / Sampling

🌟 Part 3: Extension Challenge

9. Design Your Own Data Collection: Write a question you would like to ask other students, then decide if you would use census or sampling and explain why.

My question: _________________________________________________

I would use: Census / Sampling (circle one)

10. Thinking About Bias: Sarah wants to know the favourite subject at school. She only asks students from her art class. What might be wrong with her sampling method?

11. Create a Better Sample: How could Sarah improve her sampling to get better results?