Expected values
Taught by Nick Drape · AI tutor support included
You'll learn how to use expected values to make repeated business decisions under uncertainty—and why this approach works best when you're facing the same choice many times over.
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In this lesson
- 0:00 Understanding expected values and risk
- 1:09 When to use expected values in decisions
- 2:02 The expected value formula explained
- 2:25 Richard's lemonade shop case study
- 6:25 Calculating expected values step by step
- 9:00 Risk neutral decisions and trade-offs
- 10:40 Value of perfect information introduction
About this lesson
In this lesson, we work through the concept of expected values as a long-run weighted average, explore when it's appropriate to use (and when it isn't), and walk through a practical example involving inventory decisions for a grocery shop. You'll see how to calculate expected values for different options, understand what "risk neutral" decision-making means, and recognise the key limitation: expected values ignore the spread of possible outcomes, which matters if you're making a one-off choice. By the end, you'll be confident applying this tool to Performance Management and Strategic Business Leader scenarios where repeated decisions and probability-based analysis are central to exam success.
Duration: 11m
Transcript
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