This is a graph with two panels.

The first panel shows a histogram of residual body mass index with a superimposed Normal curve. The distribution is very slightly skew to the right, but matchs the Normal curve quite closely. The histogram is from –20 to +20 with one slight outlier in cell 25 to 30.

The second panel shows a Normal quantile plot of residual body mass index. The points lie quite close to a straight line, but appear to curve upwards very slightly. There is one outlier with residual 29, the others being between ”16 and +18.

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This page maintained by Martin Bland.

Last updated 11 August 2008.