**written for NCEA Level 1 students**

**Author : Wiesje Geldof**

**Total of 4 Credits - ****Internally Assessed**

Sigma Stats Workbook **'AS 1.10 Multivariate Data’** is a write-on student resource covering the statistics students must understand to gain *Achieved*, *Merit*, or *Excellence* in the internally assessed Achievement Standard 1.10 – *'Investigate a given multivariate data set using the statistical enquiry cycle’* (AS 91035).

In this workbook students will find **clear explanations** and **detailed worked examples** showing what is required at each step of the statistical enquiry cycle. At the end of the workbook there is an Achievement Standard Test: a statistical investigation using a given set of multivariate data. Candidates should use this to evaluate their strengths and weaknesses before the internal assessment.

A full set of **answers** is included, which acts as a guide to structuring quality answers. An abbreviated version of the Achievement Criteria and Explanatory Notes of the Achievement Standard itself complete the resource.

**Topics Covered in this Workbook Include** :

**Define the Problem **
**Plan the Investigation **
**Data Display **
**Measures of Centre and Spread **
**Gathering Evidence **
**Box-and-Whisker Plots **
**Comparing Samples**
**Statistical Inference **
**Forming a Conclusion **
**Statistical Vocabulary**
**Two Investigations with Given Data Sets**
**Achievement Standard Test **** **

The Sigma Workbook **'AS 1.10 Multivariate Data'** is best bought before the standard is taught at school and used throughout the topic as a classroom and homework resource. Alternatively, the workbook would make an excellent independent study resource in the lead-up to the internal assessment of Achievement Standard 1.10.

Once completed,** 'AS 1.10 Multivariate Data'** provides a useful set of revision notes at assessment time. It can be kept as a reference book if students intend taking a Year 12 statistics course.

[Excel data files for use with **'AS 1.10 Multivariate Data'** are available by clicking the download button opposite.]