When does “twice as much” make sense?
A ratio scale has equal units and a meaningful zero.
45 sec readNumbers & statistics
Data, sampling, uncertainty, and the reasoning behind statistical claims.
Who is missing from your sample?
A large sample can still give a distorted picture if the selection process excludes people.
50 sec readDoes the last coin toss change the next one?
Independent events leave one another’s probabilities unchanged.
45 sec read