You’ll always be collecting new data.

And you need to make sure that every analysis you do incorporates the data you have that’s relevant to your problem. You’ve learned how falsification can be used to deal with heterogeneous data sources, but what about straight up probabilities? The answer involves an extremely handy analytic tool called Bayes’ rule, which will help you incorporate your base rates to uncover not-so-obvious insights with ever-changing data.