1. Random Variables

• Independent Variable- This is the variable that is manipulated or controlled by the researcher to observe its effect on the dependent variable.
• Dependent Variable- ...

In Bayesian A/B testing, we model the metric for each variant as a random variable with some probability distribution.

By accepting variants that offer a small improvement, Bayesian A/B testing asserts that the false positive rate — the proportion of times we accept the treatment when the t...

The random walk hypothesis says a stock’s past price movements are of absolutely no help in predicting future movements. In other words, it’s a random pro cess, like tossing a coin. We all know that even if a coin has come up heads ten times in a row, the probability of h...