Correlations and Time Series

A high correlation does not mean what you think it means.

Over 1,700 users shared a series of Twitter posts, which claimed “proof” that:

The vast majority of COVID deaths in England since July have been mislabelled false positive deaths.

The suggestion is that we have more COVID-19 deaths due to greater testing. The posts assert increased testing led to lots of incorrect diagnoses. Their “proof” was high correlation between two time series.