Tuesday 20 November 2012

Week 5 - Moving towards the centre

This week is all about measures of location (working out averages for the statistically-challenged). Most of the work covers an understanding of means, medians and modes and how and when they should be used. There is also content covering the calculation of means from frequency tables and the estimation of means from frequency tables with class intervals.
This material covers the first part of Section D of the scheme of work, which is the very first elements of 3.1.4 of the specification.
Click to download the presentation and the exercises.
Man falling in a deep part of a pool with average depth 3 feet
Technically, a flaw of the mean. If he'd calculated the median depth...
Cartoon by Jeff Danziger

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