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General Q&A about all branches of theoretical and applied mathematics, including closely-adjacent sciences where the central question is about the math.

339 posts   RSS
Activity Age Score Random
Filters (None)
81%
+7 −0
Are 3 10% chances better than one 30% chance (when penalized by a variable for failures)?

3 answers  ·  posted 3y ago by dustytrash‭  ·  last activity 3y ago by Grove‭

logic basic odds
71%
+3 −0
Isn't it wrong to write that Indefinite Integral = Definite Integral with a variable in its Upper Limit?

2 answers  ·  posted 3y ago by TextKit‭  ·  edited 3y ago by The Amplitwist‭

calculus
28%
+0 −3
In the Lost Boarding Pass Probability Problem, why couldn't Passengers 2-99 sit in Seats 1 or 100, before Passenger 100 boards?

0 answers  ·  posted 3y ago by DNB‭  ·  edited 3y ago by DNB‭

probability
28%
+0 −3
How do I prove Simpson's Paradox, scilicet $P(A|B) > P(A|B^C)$?

0 answers  ·  posted 2y ago by DNB‭  ·  edited 2y ago by DNB‭

probability
71%
+3 −0
Asymptotics of counting integers by prime signature

1 answer  ·  posted 3y ago by Peter Taylor‭  ·  last activity 3y ago by Derek Elkins‭

number-theory
77%
+5 −0
Can we adapt Furstenberg's proof of the infinitude of primes to other interesting subsets of the integers?

0 answers  ·  posted 3y ago by HDE 226868‭  ·  edited 3y ago by msh210‭

number-theory topology
60%
+1 −0
How can I re-write or supplant “basis point” UNambiguously?

0 answers  ·  posted 3y ago by Chgg Clou‭  ·  edited 2y ago by Chgg Clou‭

percentage
66%
+2 −0
How can I deduce which operation removes redundacies?

3 answers  ·  posted 3y ago by DNB‭  ·  edited 3y ago by DNB‭

probability
28%
+0 −3
After $n - 2$ unchosen doors are opened, how does the probability of the $n - 2$ unchosen doors "shift" or "transfer" to the lone unchosen door?

2 answers  ·  posted 2y ago by DNB‭  ·  edited 2y ago by DNB‭

probability
50%
+2 −2
What story and one-digit Natural Numbers explain Bayes' Theorem chart most simply?

0 answers  ·  posted 3y ago by DNB‭  ·  edited 3y ago by Moshi‭

probability
50%
+0 −0
methodology of integration by parts ($e^{ax}\cos (bx+c)\mathrm dx$)

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by r~~‭

calculus integration definite-integrals
50%
+0 −0
Probability of students given there are groups

0 answers  ·  posted 3y ago by Pranav_M99‭  ·  edited 2y ago by Peter Taylor‭

probability statistics
37%
+1 −3
How can "information about the birth season" bring "at least one is a girl" closer to "a specific one is a girl"?

1 answer  ·  posted 3y ago by DNB‭  ·  last activity 2y ago by r~~‭

probability
50%
+0 −0
A formal-logic formula for decimal to binary conversion

3 answers  ·  posted 3y ago by deleted user  ·  last activity 3y ago by r~~‭

bases conversion
33%
+0 −2
Why isn't the probability of being void in 3 specifi c suits $\frac{1/13}{\dbinom{52}{13}}$?

0 answers  ·  posted 3y ago by DNB‭

probability
44%
+2 −3
Intuitively, what does the 1 mean in $\dfrac{a}{b} = \dfrac{1}{\frac{b}{a}}$?

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

intuition
80%
+6 −0
Does every divergence-free vector field arise as the curl of some vector field?

1 answer  ·  posted 3y ago by The Amplitwist‭  ·  last activity 3y ago by Derek Elkins‭

geometry multivariable-calculus derivatives
33%
+0 −2
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

game-theory
62%
+3 −1
Why are you permitted to define $1 − 1 + 1 − 1 + . . .$?

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

number-theory
60%
+1 −0
proving relative lengths on a secant

1 answer  ·  posted 3y ago by msh210‭  ·  last activity 3y ago by Peter Taylor‭

euclidean-geometry
75%
+4 −0
Proving the Equation of the Pencil of Two Intersecting Circles

1 answer  ·  posted 3y ago by TripleFault‭  ·  last activity 3y ago by msh210‭

high-school-mathematics pencil conics proof circle
75%
+4 −0
Given a triangle with squares on two sides, the line segments joining the centres of the squares to the midpoint of the third side are equal and perpendicular

1 answer  ·  posted 3y ago by The Amplitwist‭  ·  edited 3y ago by ArtOfCode‭

geometry complex-analysis
18%
+0 −7
Why is -1 needed to get 65,535 from a 2^16 binary power calculation?

1 answer  ·  posted 3y ago by deleted user  ·  last activity 3y ago by Canina‭

computability power binary
80%
+6 −0
The probability distribution of rolling $n$ dice and keeping $k$ highest

1 answer  ·  posted 3y ago by tommi‭  ·  last activity 3y ago by Peter Cooper Jr.‭

probability dice
37%
+1 −3
How can I generalize a picture for the Mean Value Theorem to the Generalized MVT?

1 answer  ·  posted 3y ago by TextKit‭  ·  edited 3y ago by TextKit‭

calculus visualization
57%
+2 −1
Equation of a line given some parametrized points on it and an area

1 answer  ·  posted 3y ago by msh210‭  ·  last activity 3y ago by msh210‭

high-school-mathematics coordinate-geometry
75%
+4 −0
Product of empty set of elements vs. product over empty indexing set — is there any difference?

1 answer  ·  posted 3y ago by The Amplitwist‭  ·  edited 1y ago by Peter Taylor‭

product definition notation algebra
44%
+2 −3
Approximation of an elliptic integral

0 answers  ·  posted 3y ago by theabbie‭

calculus
75%
+4 −0
Normal in one base and not in another?

0 answers  ·  posted 3y ago by Grove‭

number-theory normal bases
71%
+3 −0
Including Association Analysis results into existing Classification Model

0 answers  ·  posted 3y ago by Guilherme Costa‭

classification association-rules
80%
+6 −0
Discrete data: Graphs and skewness

2 answers  ·  posted 3y ago by Nezar ‭  ·  last activity 3y ago by 1muflon1‭

skewness statistics discrete-data
66%
+2 −0
How to visualize division as splitting Dividend into B equal “partial groups”, then rounding up A partial groups to get a full group?

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

visualization
81%
+7 −0
When and how should the $Z_n^2$ statistic be used?

1 answer  ·  posted 3y ago by HDE 226868‭  ·  last activity 2y ago by HDE 226868‭

statistics
80%
+6 −0
Computational hardness of the uniform halting problem

1 answer  ·  posted 3y ago by user53100‭  ·  last activity 3y ago by Derek Elkins‭

computability oracle-turing-machine arithmetical-hierarchy
77%
+5 −0
Which of the multiple definitions of correlation to use?

0 answers  ·  posted 3y ago by Mithrandir24601‭  ·  last activity 3y ago by r~~‭

statistics correlation
40%
+2 −4
Why does “unless” mean “if not”?

2 answers  ·  posted 3y ago by PSTH‭  ·  edited 2y ago by Peter Taylor‭

logic
75%
+4 −0
In $P(X\leq q)$, what do we call $q$?

1 answer  ·  posted 3y ago by anoldmaninthesea‭  ·  last activity 3y ago by gramps‭

probability
83%
+8 −0
Classification of topological points

1 answer  ·  posted 3y ago by celtschk‭  ·  last activity 3y ago by Technically Natural‭

topology
40%
+0 −1
Existence of a set of all sets

2 answers  ·  posted 3y ago by MathPhysics‭  ·  last activity 3y ago by Derek Elkins‭

set-theory
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