📊 Part 1: Identifying Key Features

1. Which type of graph is most suitable for showing the relationship between two continuous variables?

Bar graph

Histogram

Scatter plot

Box plot

2. In a histogram showing test scores, you notice most data is clustered on the right side with a few low scores on the left. This distribution is:

Positively skewed (right-skewed)

Negatively skewed (left-skewed)

Symmetrical

Uniform

3. Which features should you examine when interpreting a box plot? (Select all that apply)

Median

Quartiles

Outliers

Interquartile range

All of the above

4. When examining a time-series graph showing temperature data over months, the most important feature to identify is:

Trends and patterns over time

The exact values at each point

The colour of the line

The size of the graph

🔍 Part 2: Evaluating for Bias and Misleading Elements

5. List three ways a data visualisation could be misleading or biased:

6. You see a bar graph comparing company profits where the y-axis starts at $950,000 instead of $0. This technique is called _____________ and it makes differences appear _____________ than they actually are.

7. When critically evaluating a data visualisation, what questions should you ask? Write at least four questions:

8. Explain why the choice of scale and intervals in a histogram can significantly affect interpretation:

👥 Part 3: Group Analysis and Reflection

9. Group Activity: Your teacher will provide your group with several data visualisations. For each visualisation, complete the analysis below:

Visualisation 1:

Type of graph: _________________________

Key features observed: _________________________________________________

Potential bias or misleading elements: ____________________________________

Visualisation 2:

Type of graph: _________________________

Key features observed: _________________________________________________

Potential bias or misleading elements: ____________________________________

10. Individual Reflection: Choose one visualisation from today's lesson and complete the "I notice... I wonder..." reflection:

I notice... (Describe what you observe in the visualisation)

I wonder... (Write questions about the data, context, or how it might influence understanding)

11. Communication Challenge: Write a brief explanation (2-3 sentences) describing one finding from your group's analysis using appropriate statistical vocabulary: