Overview
The new 2nd edition reflects the changes in technology and the increased focus on interpretation.
Walker Maths is a series of single standard workbooks containing high-quality, up to date material at NCEA Mathematics levels 1, 2 and 3.
The well-designed, write-on workbooks contain teaching material, including relevant formulae, and ample practice exercises along with sample tasks and questions. The workbooks reflect the content and style of the new standards, and allow teachers total flexibility in course design for students at all levels.
As a single standard series, Walker Maths offers Maths department the ability to buy titles all at once, or throughout the year as required.
A Walker Maths Digital Teacher Resource is available for $9.95 per year for a single download. Each Digital Teacher Resource includes a Walker Maths projection file. Plus a selection of
• Worksheets
• Extra questions
• Teacher notes
• Videos
• Puzzle sheets
• Practice quizzes
• Worked solutions
Schools qualify by adopting the corresponding workbook. Please contact your Learning Consultant for more information or email nz.sales@cengage.com
Glossary
What is statistical inference?
Introduction
Variables
Requirements of a basic report
1 a Research your context
b Select suitable data
2 Pose an appropriate question which is informed by contextual knowledge
3 Name the response variable and the explanatory variable, then justify your choice
4 State the purpose of your investigation and who would find it useful
5 Select and use appropriate displays
6 Identify features in the data
7 Fit a linear model
8 Describe the nature of the relationship
9 Describe the strength of the relationship
10 Use the model to make a prediction
11 Communicate findings in a conclusion
Putting it all together
Improving your report
A An in-depth look at unusual points
B By removing unusual points
C Analyse the residual graph
D Fit a non-linear trend line
E Groupings
F Correlation and causality
Writing about bivariate data
Pick the errors
Putting it all together
Practice tasks
Answers