1. A scatter plot shows the relationship between hours of study and test scores for 20 students. The points generally trend upward from left to right. What type of association does this show?

2. In a scatter plot comparing temperature (°C) and ice cream sales ($), most data points are clustered around a line that slopes upward. One point shows very high sales on a cold day. This point is called:

3. Which of the following would be best represented using a two-way table? (Select all that apply)

4. Explain what it means when two variables have a "strong positive association" in a scatter plot:

5. A newspaper headline reads: "Study shows 90% of teenagers prefer online learning!" However, the study only surveyed 50 students from one private school. What type of bias is present?

6. A health website claims "People who drink green tea live longer!" based on a survey. What additional information would you need to evaluate this claim? (Select all that apply)

7. A graph in a magazine shows that ice cream sales and drowning incidents both increase in summer. The article concludes that "ice cream causes drowning." Explain why this conclusion is incorrect:

8. When evaluating statistical claims in the media, list three questions you should always ask about the data source:

9. A two-way table shows mobile phone usage by age group. The table reveals that 85% of teenagers use smartphones, compared to 45% of adults over 65. What can you reasonably conclude?

10. You're analysing data about study hours and exam results. Before drawing conclusions, you should check for:

11. Describe the difference between correlation and causation, and give an example: