🔍 Part 1: Evaluating Data Displays

1. Look at this graph description: "A bar graph showing favourite sports with the y-axis starting at 15 instead of 0. Football shows 20 votes and netball shows 18 votes, but the football bar looks three times taller than the netball bar."

What makes this graph misleading?

The y-axis doesn't start at zero, making differences look bigger

There aren't enough sports shown

The colours are too bright

The title is missing

2. A good data display should include: (Check all that apply)

Clear title

Labelled axes

Fancy decorations

Appropriate scale starting from zero

Source of the data

3. You see a pie chart titled "Students' Favourite Subjects" but it only shows data from one classroom of 8 students. What's the problem?

📊 Part 2: Your Data Investigation

Data Set: Hours spent on screen time per week by Year 6 students

Boys: 12, 15, 8, 20, 14, 18, 10, 16

Girls: 10, 14, 12, 22, 9, 16, 11, 15

4. Write TWO investigative questions you could ask about this data:

Question 1: _________________________________________________

Question 2: _________________________________________________

5. Calculate the statistics for each group:

Boys' Data:

Mean: _______ hours

Median: _______ hours

Mode: _______ hours

Range: _______ hours

Girls' Data:

Mean: _______ hours

Median: _______ hours

Mode: _______ hours

Range: _______ hours

6. Use your calculations to answer ONE of your investigative questions from Question 4:

💭 Part 3: Critical Thinking & Reflection

7. Based on your analysis, which statement is most accurate?

Boys spend much more time on screens than girls

Girls spend much more time on screens than boys

Boys and girls spend similar amounts of time on screens

There's not enough data to make any conclusions

8. What additional information would make this data investigation stronger?

9. Peer Discussion Prompt: Share your findings with a partner. Explain which statistic (mean, median, mode, or range) was most helpful for answering your investigative question and why.

My partner's name: _______________________

Key point from our discussion: ________________________________________

10. Reflection: How can being a "data detective" help you in real life?