Use seasonal indices in time series - exam scenario
A wildlife monitor time-series value is 144 and the seasonal index is 1. Deseasonalise the value. Confirm the context meaning before entering the value. Enter the requested value and choose the interpretation that matches the result.
Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.