What’s the smallest value of N such that the probability of getting at least one sum of 8 in N rolls of 2 fair dice is at least 99%?
Guesstimate:
< 36 or ≥ 36?
Exact?
Guesstimate:
< 36 or ≥ 36?
Exact?
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48
Another View of Pythagorean Triple
davesmathnotations.substack.com/p/another-view…
davesmathnotations.substack.com/p/another-view…
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What Can You Discover by Folding a Rectangle? davesmathnotations.substack.com/p/what-can-you…
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They Struggled With Math. Then They Challenged My AP Calculus Students davesmathnotations.substack.com/p/they-struggl…
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The Sum of Every Arrangement of 1234 (And Why You Don’t Have to Add Them) davesmathnotations.substack.com/p/the-sum-of-e…
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Exactly One or At Least One? A Three-Digit Counting Challenge davesmathnotations.substack.com/p/exactly-one-…
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Sorry, I left out the link! Here it is:
davesmathnotations.substack.com/p/oh-no-not-an…
davesmathnotations.substack.com/p/oh-no-not-an…
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In base 10, 1001 is divisible by 11. EXPLAIN WHY 1001 (base b) is always divisible by 11 (base b). Assume 2≤b≤10. Express the quotient in base b. davesmathnotations.substack.com/p/in-base-10-1…
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No Pizza Today. Just Connect the Dots! davesmathnotations.substack.com/p/no-pizza-tod…
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Slicing a Pizza with Chords: How Many Pieces? davesmathnotations.substack.com/p/slicing-a-pi…
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MAGNIFYING THE LENS davesmathnotations.substack.com/p/magnifying-t…
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If 1.8(28) + 32 = 82.4, then 1.8(29) + 32 = ? davesmathnotations.substack.com/p/if-1828-32-8…
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36 + 64 = 100 So?davesmathnotations.substack.com/p/36-64-100?r=…
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WHY IS (1+2+3+4+5)² - (1+2+3+4)² = 5³ ? davesmathnotations.substack.com/p/why-is-12345…
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Five Different Odd Digits — One Product davesmathnotations.substack.com/p/five-differe…
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Exactly Four Factors davesmathnotations.substack.com/p/exactly-four…
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