Te reo Māori terms
click each term to open in Te Aka
Learning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
S4-1
New NZC (2026)
NZC26-P4-STA-DKD-K-Y9-07NZC26-P3-STA-VIS-K-Y7-03
Resources
- Beta: Skills in Ex 31.03, pg 590
Terminology
- time series
- long-term trend
- seasonality
- noise
Task goals
- Recall what T, S, and N stand for in the TSN framework for time series analysis.
- Identify the long-term trend in a time series as increasing or decreasing (never as \"positive\" or \"negative\").
- Identify seasonality as a regular, repeating pattern in the data.
- Identify noise as an unusual or unexpected point that doesn't fit the trend or seasonal pattern.
- Analyse a described or graphed dataset to identify all three TSN components together.
- Explain how trend, seasonality, and noise can mask or be mistaken for one another, and justify TSN classifications with reasoning.
Where this fits
What leads into this objective, and where it goes next.
You are here
Analysing time series graphs - TSN
Know
A time-series investigation looks at a variable over time.
Statement▸
Year 9 · Statistics · Developing knowledge from data
NZC26-P4-STA-DKD-K-Y9-07
Also under S4-1:
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.