Te reo Māori terms
click each term to open in Te AkaLearning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
S5-1
New NZC (2026)
NZC26-P4-STA-DKD-P-Y10-02NZC26-P3-STA-DKD-K-Y7-02NZC26-P3-STA-DKD-K-Y7-03NZC26-P3-STA-DKD-P-Y7-02NZC26-P3-STA-DKD-P-Y7-03NZC26-P3-STA-INT-P-Y7-01
Resources
- Alpha textbook: Measures of centre, Ex 30.02 – Ex 30.05, pg 519-526
- CorbettMaths on mean, median, mode, and rangeQuestions PDF · Answers
- Dr Austin Maths - Averages and Range Revision Practice GridQuestions PDF · Answers
- Beta: Skills in Ex 30.01, pg 562
Terminology
- Mean
- Median
- Mode
- Range
- Variation
Task goals
- Calculate the mean of a dataset (sum divided by count), including cases where the mean is not a whole number.
- Calculate the median of a dataset with an odd or even count of values (for an even count, average the middle two after sorting).
- Find the mode of a dataset, including recognising when a dataset has no mode.
- Calculate the range of a dataset as maximum minus minimum, and describe what it represents (the spread/variation within the data).
- Work backwards from a given mean and a known number of values (with some values missing) to find a missing value.
- Judge which measure of centre (mean, median, or mode) best represents a dataset, especially explaining why the median or mode can be more representative than the mean when an outlier is present.
Where this fits
What leads into this objective, and where it goes next.
You are here

Calculating averages and range
Do
Reasoning why a mean or median would be a better measure of central tendency for a given statistical question
Statement▸
Year 10 · Statistics · Developing knowledge from data
NZC26-P4-STA-DKD-P-Y10-02
Next
Year 10 is the last year of this phase — the curriculum lists nothing after this. No extension resources on the site yet.
Also under S5-1:
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.







