# SL AA – Averages and Range

##### Averages and Standard deviation

##### Using the GDC 1

##### Using the GDC 2

## Averages Google Form

## Desmos Central tendency and dispersion

Students describe the statistical terms mean, median, mode, range and interquartile range. They then sort statements into ‘Always true’, ‘Sometimes true’ and ‘Never true’. By Becky Hall.

## Desmos Mean, Median and Variability

Students explore the differences between mean and median, and assess the variability of data sets. By Bob Lochel.

## Desmos Which Average?

Students first recap finding mean, median and mode from a list of data. Students then complete a card sort to decide which is the most useful average for a data set. By Becky Hall.

## Desmos Comparing Distributions

In this activity, students will learn about a new statistic – the standard deviation – used to measure the variability of a data set. By Bob Lochel.