Friday 5 August 2016

Innumerates Play with Percentages

I'm frequently irritated by muddles involving percentages, but today's Radio 4 news perpetrated an atrocity worse than anything I recall encountering before.

There was a report that 14% of adults claim to have suffered sexual abuse in childhood. 11% of women report such abuse, as do 3% of men, and 11+3 = 14.

I wonder what errors may have been involved in the derivations of the 11% and the 3%.




No comments :