mathcounts notes
The best math program for middle school students
Showing posts with label
Mathcounts State Sprint
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Showing posts with label
Mathcounts State Sprint
.
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Tuesday, July 8, 2025
Expected Value Question : 2024 Mathcounts State Sprint #24 level 1.5
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Problem. Dennis rolls three fair six-sided dice, obtaining a, b, c ∈ {1,…,6}. Find \[ \mathbb{E}\!\bigl[\,|a-b|+|b-c|+|c-a|\,\bigr]. \] ...
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