Say you run an experiment. You get some data. From that data you calculate a p-value. The data has randomness, so the p-value is a random variable and has a dis

Say you run an experiment. You get some data. From that data you calculate a p-value. The data has randomness, so the p-value is a random variable and has a distribution. By chance you can get results that look significant. By chance you can get results that look insignificant.