Slightly.

A recent request for help resulted in a surprisingly large number of girls schools responding. We wondered if participating schools were biased along single sex education lines.

A quick analysis gave us the following percentages of UK schools taking part:

• 20.4% of secondary schools
• 19.9% of mixed schools
• 27.7% of Girls Schools
• 19.0% of Boys Schools

So we have a slight bias towards girls schools, but as they constitute only 7% of secondary schools, we can live with that bias.

And here’s the Venn diagram that illustrates the figures, and illustrates how dreadful venn diagram generators are.