Question 1

What is NCEA AS 91268 about?

Accepted Answer

This standard asks you to design and run a probability simulation to investigate a real situation involving chance or uncertainty. You'll need to plan your simulation carefully (choosing tools, deciding how many trials to run), carry it out, analyse the results with graphs and statistics, and write up what you found out.

Question 2

What do students need to do for AS 91268?

Accepted Answer

1. Design a simulation by identifying what tools you'll use (dice, spinners, random number generators, etc.) and clearly defining what counts as one trial 2. Decide how many trials to run and set up a system to record all the data or outcomes from your simulation 3. Carry out the simulation and collect your results 4. Display and analyse your data using appropriate charts, graphs, or statistics 5. Write a conclusion that explains what your simulation results show about the situation you investigated

Question 3

What's the difference between Achieved, Merit, and Excellence for AS 91268?

Accepted Answer

Achieved: You show all the main steps of the simulation process: designing it, running it, displaying results, and writing a conclusion—but the connection between your choices and the real situation could be stronger. Merit: You explain why you made each design choice in your simulation and link your results back to the original situation, supported by evidence from your data. Excellence: You integrate probability knowledge with real-world context throughout, reflect on whether your simulation process worked well, and consider other variables or factors that might affect the outcome.

Question 4

What mistakes do students typically make in AS 91268?

Accepted Answer

1. Not clearly explaining why you chose your simulation method or how your trial design matches the real-world situation 2. Running too few trials, which can give unreliable or unusual results that don't reflect real probabilities 3. Writing a conclusion that just states the numbers without connecting them back to what the original question was actually asking

Probability simulation

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