This tutorial shows how to use GeoGebra (www.geogebra.org/) to calculate the mean and median of a set of data. This example also discusses how the mean isn't always representative of what a "normal" data point will be.

This tutorial shows how to calculate measures of spread: percentiles, range and interquartile rage both with formulas and technology. The technology apps used are GeoGebra (www.geogebra.org/) and the Texas Instruments family of graphing calculators.

The tutorial also shows how to draw a box and whiskers plot using the quartiles, median and max & min data points.

This tutorial shows how to calculate mean, median and mode both with formulas and technology. The technology apps used are GeoGebra (www.geogebra.org/) and the Texas Instruments family of graphing calculators.

This tutorial shows how to draw a circle graph given data in percentage form. The tutorial shows how to convert the percentages to degrees and how to use a protractor to measure and draw all the sectors of the circle or pie graph.

This tutorial discusses the principles of data collection: randomization, repetition and control.

This tutorial describes the concept of "data". It also gives several examples of variable, classifies them into either qualitative or quantitative. it also discusses how quantitative variables can be further categorized as either discrete or continuous.

This tutorial shows how to draw a simple tree diagram with 2 stages of events. The first stage has a normal 6 sided die tossed and the second stage is the flip of a coin.

This tutorial shows how to draw a Venn Diagram using 3 sets and also demonstrates how to use (through an example) the set notation terms union, intersection and subset.

This tutorial discusses different types of bias and also ways statistics can be misleading.