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Statistics Investigation Basics

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Statistics Investigation Basics

Students collecting data with charts and graphs

📊 Part 1: Statistical Terms

1. What is a statistical investigation?

A way to ask questions and collect data to find answers

A type of maths problem with numbers

A science experiment

2. Which of these is an example of categorical data?

Favourite colours of students in your class

Heights of students measured in centimetres

Number of pets each student has

3. A survey is used to:

Collect information from people by asking questions

Count objects in a room

Measure distances

4. What is the correct order for a statistical investigation?

Ask a Question → Collect Data → Record Data → Interpret Data → Share Results

Collect Data → Ask a Question → Share Results → Record Data → Interpret Data

Share Results → Ask a Question → Collect Data → Record Data → Interpret Data

📝 Part 2: Data Collection Practice

5. Look at this tally chart showing favourite school subjects:

Maths: |||| |||| |||

English: |||| ||||

Science: |||| |||| |||| |

Art: |||| ||

How many students chose Science as their favourite subject? _______

Which subject was the most popular? _________________

How many students were surveyed in total? _______

6. Write a good survey question you could ask your classmates about their favourite:

Food: ________________________________________________

7. Give two examples of discrete numerical data you could collect about your classmates:

Example 1: ________________________________________________

Example 2: ________________________________________________

🔍 Part 3: Investigation Planning

8. Choose a question you would like to investigate with your class. Then plan how you would collect the data:

My investigation question:

How I would collect the data:

What type of data this would be (categorical or discrete numerical):

_________________________________________________

9. Why is it important to record data accurately during a statistical investigation?

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