Lesson 11 of 20 · about 15 min
Waiting times: the geometric distribution
A rare item drops 5% of the time. How many tries until you get it? On average 20, but more than a third of players will need longer, and bad luck so far doesn't make it come any sooner. You'll explore the distribution of waiting times, prove the "1 over p" rule, and work out how long it takes to collect a full set of stickers.
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In this lesson you'll learn:
- Geometric distribution
- Memoryless
Free to try in F07 Probability & Statistics:
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