A random variable is one whose value is unknown or a function that assigns values to each of an experiment’s outcomes. A random variable can be discrete or continuous.

How to Generate a Random Variable With Normal Distribution in Excel. ... Using the sales example, with a weekly sales average of $2,000 that fluctuates about $500 up or down, ...

Decision trees are a simple but powerful prediction method. Figure 1: A classification decision tree is built by partitioning the predictor variable to reduce class mixing at each split. Figure 2 ...