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Statistical Enquiry Data Analysis

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Statistical Enquiry Data Analysis worksheet preview

Statistical Enquiry Data Analysis

Statistical analysis illustration

🎯 WALT: We Are Learning To conduct statistical enquiry using the PPDAC cycle

Achievement Standard: AS 91101 - Apply probability concepts in solving problems

Success Criteria - I can:

Identify statistical questions and variables

Plan data collection methods

Analyse data using appropriate statistical tools

Draw conclusions and communicate findings

📊 Problem Context

You are investigating: "What factors influence Year 12 students' choice of lunch at our school?"

1. Which type of statistical question is this?

Summary question (describes data)

Comparison question (compares groups)

Relationship question (explores connections)

2. Identify TWO variables you could investigate:

Variable 1: ___________________________

Variable 2: ___________________________

📋 PPDAC Cycle Planning

3. PROBLEM: Write your statistical question in your own words:
4. PLAN: How will you collect data? Tick all appropriate methods:

Survey questionnaire

Observation at the canteen

Interview students

Use existing school data

5. DATA: What sample size would be appropriate for reliable results?

20-30 students

50-80 students

100+ students

6. ANALYSIS: List THREE statistical measures you could calculate:

1. ___________________________

2. ___________________________

3. ___________________________

📈 Data Analysis & Communication

7. Given this sample data about lunch choices:

Canteen food: 45 students | Brought lunch: 32 students | Bought outside: 18 students | No lunch: 5 students

Calculate the percentage for each category:

8. CONCLUSION: Write a summary statement about the lunch data:

🎯 Differentiation Support

Dyslexia-friendly option: Use bullet points instead of paragraphs for your conclusions

Extension activity: Design a follow-up investigation exploring WHY students make these lunch choices

9. Extension: What additional data would strengthen your investigation?

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