Statistics · Module 4 · Discrete random variables and the binomial

Discrete Walkthrough

Turn chance outcomes into numbers, build probability tables and histograms, watch an average settle into an expected value, then master the binomial: its formula, its mean and standard deviation, and the at most and at least questions. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Statistics Study Tools · CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Practice next in the Discrete Lab. Probabilities are rounded to four decimal places unless a step says otherwise. Simulated rolls, flips and arrivals come from a fixed random stream so every replay looks the same.