Achievement objective S7-3
In a range of meaningful contexts, students will be engaged in thinking mathematically and statistically. They will solve problems and model situations that require them to:
- Evaluate statistically based reports:
- A. interpreting risk and relative risk
- B. identifying sampling and possible non-sampling errors in surveys, including polls.
Note: this content is new to the statistics curriculum.
A. Interpreting risk and relative risk:
- Calculates and interprets
risk, selects baseline group, and calculates and interprets
relative risk and writes a news clip reporting on findings.
- In a media article with text and/or a table, identifies absolute risk, baseline group and
relative risk, and for
relative risk, identifies the two groups being compared; identifies relevant missing information and justifies why it is important to include this information; identifies whether risk applies personally and why.
B. Identifying sampling and possible non-sampling errors in surveys, including polls:
- In a media report on a survey or a poll, identifies
sampling error and explains the connection among sample, population,
sampling variability, and
- In a media report on a survey or a poll, identifies and evaluates, using critical questions (look under the heading critical questions in the work doc below), sampling methods and possible
non-sampling errors such as self-selection, non response bias, behavioural considerations.
S7-3 links from S6-2 and to S7-1, S7-2, S7-4, S8-3.
What is new/changed?
- Identifying non-sampling errors in surveys, including polls.
Possible context elaborations
CensusAtSchool is a valuable website for classroom activities and information for teachers on all things statistics.
The legal blood alcohol level and the relative risk of having a fatal crash of 15–19 year olds compared to 30+ year olds:
- Political polls, radio polls, web surveys
Activity: Chocolate statistical literacy
Newspapers: Exploring media-presented statistical information.
Assessment for qualifications
NCEA achievement standards at level 1, 2 and 3 have been aligned to the New Zealand Curriculum. Please ensure that you are using the correct version of the standards by going to the
The following achievement standard(s) could assess learning outcomes from this AO:
- AS91266 Mathematics and statistics 2.11 Evaluate a statistically based report
- AS91267 Mathematics and statistics 2.12 Apply probability methods in solving problems
Refer to the
mathematics and statistics matrix.
Last updated September 26, 2013