## regression to the mean

very ill people got better after dancing naked at full moon, then surely

the dance works. But hang on a second. Before you jump to conclusions, you need to rule

out a statistical phenomenon called regression to the mean.

very ill people got better after dancing naked at full moon, then surely

the dance works. But hang on a second. Before you jump to conclusions, you need to rule

out a statistical phenomenon called regression to the mean.