Data and Statistics
What Is Data?
Data are facts or numbers that tell us something about the world.
Examples: the height of every student in your class, the number of pets people have, or the scores from a video‑game tournament.
When we put data together, we can see patterns and answer questions.
Collecting Data
- Ask A Question – What do you want to know?
- Choose A Method – Survey classmates, count objects, or use a sensor.
- Record The Results – Write numbers in a table or list.
- Check Your Work – Make sure each entry is correct and complete.
Making Sense of Data
- Organise – Sort numbers from smallest to largest or group them into categories.
- Display – Use bar charts, line graphs, or pie charts to show the information visually.
- Summarise – Find the total, the average (mean), the middle value (median), and the most common value (mode).
These steps help us see trends, like whether most students prefer pizza over burgers.
Why Statistics Matter
Statistics help us make smart decisions.
- Science – Researchers use data to test ideas and discover new facts.
- Sports – Coaches look at player stats to choose line‑ups.
- Everyday Life – We check weather forecasts, plan budgets, and compare product reviews using statistics.
Understanding data and statistics gives you a powerful tool to explore the world and solve problems. Keep asking questions, gather information, and let the numbers tell the story!