L1 · Required

Expectation, variance and odds

Use expectation, variance and odds to make decisions inspectable.

What you should be able to do

Independently: Calculate expected payoff and distinguish it from variability.

Suggested prerequisites

A short guide

Use expectation, variance and odds to make decisions inspectable. Calculate expected payoff and distinguish it from variability. Read the indicated source section, identify its key concepts and conditions, and work through the example. Record inputs, sources, units and assumptions. Keep your method separate from the result, mark unanswered questions, and review the output against the checklist.

An example

A 50% chance of +4 and 50% of −2 gives expected payoff 1.

Your task

Calculate expected payoff and distinguish it from variability.

Start with this source

Read the indicated section relevant to expectation, variance and odds and complete the foundation task.

This source is awaiting renewed review. Try the task above and adjacent skills; reviewed sources will appear here.

Your learning checklist

Required items: 0 / 10 completed or already known

Device storage

Next: Read a role through its responsibilities

Checklist statuses are self-reported; exercise scores are recorded separately. You can reset any item.

Self-check