AS 91036 · 3 credits · Internal
Bivariate data
Investigate bivariate numerical data using the statistical enquiry cycle
Study with Coach
Save your actual school result to count your credits.
You need to plan and carry out a statistics investigation using data with two numerical variables (like height and arm span, or study time and test scores). You'll work through the statistical enquiry cycle — asking a clear question, deciding what to measure, collecting and displaying your data, and then writing conclusions about what the data shows. The key is showing how your choices and findings connect back to the real-world situation you're investigating.
What to do, grades and common mistakes
- ·Plan a clear investigation question about the relationship between two numerical variables (explaining which variable might influence the other)
- ·Choose appropriate variables to measure and decide how to collect data fairly (thinking about what might affect your results)
- ·Create and use appropriate graphs or displays (like scatter plots) to show patterns in your data
- ·Use summary statistics and features of your graphs to describe the relationship you found between the two variables
- ·Write a conclusion that connects your findings back to your original question and the real-world context
You work through each part of the statistical enquiry cycle, create appropriate displays, and write a conclusion about the relationship between your two variables.
Your assessment resources
The standard itself10
- Achievement Standard · 2019PDF ↗
- Achievement Standard · 2019DOC ↗
- Achievement Standard · 2017PDF ↗
- Achievement Standard · 2017DOC ↗
- Achievement Standard · 2015PDF ↗
- Achievement Standard · 2015DOC ↗
- Achievement Standard · 2014PDF ↗
- Achievement Standard · 2014DOC ↗
- Achievement Standard · 2011PDF ↗
- Achievement Standard · 2011DOC ↗