Two-Variable Data

Dependent and Independent Variables

Create and Interpret Back to Back Stemplots

Create and Interpret Stemplots (Single and Double)

Create and Interpret Side-by-Side Boxplots

Create and Interpret Two Way Tables

Interpret Divided Bar Graphs

Create and Interpret Scatter Plots

Create and Interpret Parallel Dot Plots

Describing Statistical Relationships

Comparing Sets of Data (includes boxplot)

Shape and Correlation of Bivariate Data

Life expectancy (Investigation)

Grade 12

Create and Interpret Two Way Tables

Interactive practice questions

Members of a gym were asked what kind of training they do. Each responder only did one kind of training. The table shows the results.

	Cardio	Weight
Male	$12$12	$26$26
Female	$44$44	$18$18

a

How many gym members were asked altogether?

b

How many members do weight training?

c

What percentage of the gym members do weight training?

Easy

1min

The following table has been drawn up to show the results of a survey on smoking.

Easy

3min

This table describes the departures of $flight$ s out of $an$ $airport$ for the months of $May$ and $June$ .

Easy

4min

Two motels promoted packages for one night and two night stays. This table records the results.

Easy

5min

Outcomes

12D.D.2.3

Generate, using technology, the relevant graphical summaries of two-variable data based on the type of data provided

12D.D.2.5

Interpret statistical summaries to describe the characteristics of a two-variable data set and to compare two related two-variable data sets; describe how statistical summaries can be used to misrepresent two-variable data; and make inferences, and make and justify conclusions, from statistical summaries of two-variable data orally and in writing, using convincing arguments

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