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Q&A Meta

Posts by Chgg Clou‭

52 posts
Score Age
42%
+1 −2
Meta How can Cross Multiplication be intuited or pictured? average(average(a,b),c) vs. average(a,average(b,c)).

1 answer  ·  posted 3y ago by Chgg Clou‭  ·  last activity 3y ago by Peter Taylor‭

Question discussion
40%
+0 −1
Q&A Why do 3D mental pictures usually suffice for high-dimensional geometry?

0 answers  ·  posted 3y ago by Chgg Clou‭  ·  edited 3y ago by Chgg Clou‭

Question geometry
40%
+0 −1
Q&A What does "individuals discount the future in a constant manner" mean?

0 answers  ·  posted 3y ago by Chgg Clou‭

Question probability
40%
+0 −1
Q&A Why must percent change divide the difference by the old, NOT new, value?

1 answer  ·  posted 3y ago by Chgg Clou‭  ·  last activity 3y ago by celtschk‭

Question percentage
37%
+1 −3
Q&A Why do the Expected Values differ, for different wagers of the same lottery?

1 answer  ·  posted 1y ago by Chgg Clou‭  ·  last activity 1y ago by Peter Taylor‭

Question lottery
37%
+1 −3
Q&A If money's less valuable in the two-bullet case of the Russian Roulette problem, then ought you pay more to remove a bullet when the gun has $\ge 2$ bullets?

0 answers  ·  posted 3y ago by Chgg Clou‭

Question probability
37%
+1 −3
Q&A How can you analogize mathematical induction to dominoes falling, if some domino can fail to topple? [closed]

1 answer  ·  posted 3y ago by Chgg Clou‭  ·  closed 3y ago by Peter Taylor‭

Question induction
33%
+0 −2
Q&A Intuitively, why can $a, b$ cycle in ${\color{red}{b}} = \frac c{\color{red}{a}} \iff {\color{red}{a}} = \frac c{\color{red}{b}}$?

3 answers  ·  posted 3y ago by Chgg Clou‭  ·  last activity 3y ago by whybecause‭

Question arithmetic
33%
+1 −4
Q&A Without trial and error, how can I effortlessly deduce all $n, k_i ∈ ℕ ∋ \binom n {k_1, k_2, ..., k_n} =$ given c?

1 answer  ·  posted 1y ago by Chgg Clou‭  ·  edited 4mo ago by Michael Hardy‭

Question combinatorics
33%
+1 −4
Q&A How to decide whether to buy a lottery with a too negative EV, but passable $\Pr($you win jackpot at least once│n plays)? [closed]

0 answers  ·  posted 1y ago by Chgg Clou‭  ·  edited 1y ago by Chgg Clou‭

Question lottery
33%
+1 −4
Q&A What's mathematically fallacious with Edvin Hiltner's Lotterycodex patterns, to maximize your chance of winning lotteries? [closed]

0 answers  ·  posted 1y ago by Chgg Clou‭  ·  closed 1y ago by Mithical‭

Question lottery
33%
+0 −2
Q&A Is Mathematical Induction truly "induction", or misnamed? [closed]

3 answers  ·  posted 3y ago by Chgg Clou‭  ·  closed 3y ago by Peter Taylor‭

Question induction
33%
+0 −2
Q&A How does counting E twice explain the discrepancy between the third between C and E, third between E and G v. fifth between C and G?

1 answer  ·  posted 3y ago by Chgg Clou‭  ·  last activity 3y ago by leovt‭

Question arithmetical-hierarchy
33%
+0 −2
Q&A Why so many books on introduction or bridges to proofs for undergraduates?

0 answers  ·  posted 3y ago by Chgg Clou‭  ·  edited 3y ago by r~~‭

Question logic
33%
+0 −2
Q&A Why should the near-zero prior probability, of 9/11/2001 attacks on the World Trade Centre, overwhelm any subsequent response that may have lowered the objective risk?

0 answers  ·  posted 3y ago by Chgg Clou‭  ·  edited 3y ago by Chgg Clou‭

Question probability
33%
+0 −2
Q&A Why's the unique sub-game perfect equilibrium, that the first player should offer around $1.25 to player 2?

0 answers  ·  posted 3y ago by Chgg Clou‭

Question game-theory
33%
+0 −2
Q&A How can you foretell if a problem is one whose solution admits a simple mathematical description?

0 answers  ·  posted 3y ago by Chgg Clou‭

Question geometry
30%
+1 −5
Q&A In "if and only if" proofs, why's 1 direction easier to prove than the other?

2 answers  ·  posted 3y ago by Chgg Clou‭  ·  last activity 2y ago by Prime Mover‭

Question logic
28%
+0 −3
Q&A How can Cross Multiplication be intuited or pictured? [closed]

0 answers  ·  posted 3y ago by Chgg Clou‭  ·  edited 3y ago by Chgg Clou‭

Question arithmetic
28%
+0 −3
Q&A How do I compare lotteries' chances of winning jackpot, when they differ in the maximum number of plays?

1 answer  ·  posted 1y ago by Chgg Clou‭  ·  edited 1y ago by Chgg Clou‭

Question lottery
28%
+0 −3
Q&A If a repair on a vessel costs $2$ and fully repaired vessel is worth $1$, don't we need know worth of broken vessel to decide whether to repair?

0 answers  ·  posted 3y ago by Chgg Clou‭  ·  edited 3y ago by Wolgwang‭

Question basic
22%
+0 −5
Q&A Isn't Ontario 49 always worse than Daily Grand? [closed]

0 answers  ·  posted 1y ago by Chgg Clou‭  ·  closed 1y ago by Peter Taylor‭

Question lottery
22%
+0 −5
Q&A At what jackpot minimum is playing Lottario rational?

1 answer  ·  posted 1y ago by Chgg Clou‭  ·  edited 1y ago by Chgg Clou‭

Question lottery
22%
+0 −5
Q&A How can school children intuit why over 100, D is larger? But under 100, D% is larger?

2 answers  ·  posted 1y ago by Chgg Clou‭  ·  last activity 1y ago by Hudjefa‭

Question high-school-mathematics
22%
+0 −5
Q&A If a changes to b, then doesn't a + d = b? Why a(1 + d) = b? [closed]

0 answers  ·  posted 1y ago by Chgg Clou‭  ·  closed 1y ago by Peter Taylor‭

Question high-school-mathematics