Example frequency distribution

Scan of histogram drawn on graph paper

Download a two page PDF file [ 10 Mb file ] with scans of the histogram and cumulative curve drawn from a frequency distribution of adult male weights (made up data!). The frequency distribution has a moderate skew and shows the way the mean, median and mode spread out under those circumstances. The frequencies and weight intervals have been chosen to fit on a sheet of the standard A4 2mm/2cm graph paper we use in Colleges. The scan is at 300 dpi and in grey scale.

Today’s 20 minutes was spent drawing and scanning the graphs, it took another 20 minutes to upload it here because of the size of the PDF file (had to use ftp)! The upload function in WordPress proved unequal to the task (I think the php memory on the server ran out).

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