Odds and likelihood ratios

Likelihood ratios can help in diagnostic testing and decisions.

During the pandemic, people get different tests. Someone may do a rapid lateral flow device test. If that is positive, they could then get a polymerase chain reaction (PCR) swab test. What if the PCR test returns negative, thus giving conflicting results?

Odds and probabilities

In classical statistics, probabilities are relative frequencies of an event over many trials. If you roll a fair six-sided die lots of…