Set Theory, Logic, Probability, Statistics Forum

Post thread
Join experts in discussion on Set Theory, Logic, Probability, Statistics topics. Fundamentals in Set theory, logic and proofs. Probability and statistics also. Homework help is available.
Undergrad How do I express that a 100% occurrence in a small sample is low "confidence"?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate How to set up and interpret Chi^2 test results for my data?
  • · Replies 11 ·
Replies
11
Views
3K
High School What Defines a 2-Way Frequency Table?
  • · Replies 7 ·
Replies
7
Views
2K
High School The Paradox of 1 – 1 + 1 – 1 + 1 – 1 + …
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Logical representation of prime numbers
  • · Replies 19 ·
Replies
19
Views
4K
High School Really simple mistake in this combinatorics problem?
  • · Replies 19 ·
Replies
19
Views
4K
High School Are both of these the same thing? (logical NOT and the complement rule)
  • · Replies 24 ·
Replies
24
Views
4K
High School Uncomputable Numbers and Rational Approximations
  • · Replies 4 ·
Replies
4
Views
2K
High School Sequence formula needed - Keyword --> annuity
  • · Replies 10 ·
Replies
10
Views
2K
High School Set Theory Question -- Which one is correct?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad A controversial application of Bayesian reasoning
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Research about chained functions
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad On injectivity of two-sided Laplace transform
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad How to show these random variables are independent?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Understanding extinction probability in simple GWP
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad On the expected value of a sum of a random number of r.v.s.
  • · Replies 3 ·
Replies
3
Views
2K
High School Relative And Absolute Probability (Probability Of Picking A Red Ball)
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Does the generalized gamma distribution have a mgf?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How (un)reasonable is graphic linear regression in a monolog graphic?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Dirac Delta: Normal -> Lognormal?
  • · Replies 11 ·
Replies
11
Views
2K
High School A question about cardinalities
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Markov Processes: Estimating Transition Probabilities
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Area distribution of inscribed triangles in a circumference
  • · Replies 12 ·
Replies
12
Views
3K
Undergrad Expected value of X~Geom(p) given X+Y=z
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Proof request for best linear predictor
  • · Replies 1 ·
Replies
1
Views
2K
High School Are Implication and Equivalence Interchangeable in Logic?
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad On Jensen's inequality for conditional expectation
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Is this conditional expectation identity true?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Help understanding conditional expectation identity
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Total Winning Saddlecloth Numbers
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Adding random numbers: Tolerance analysis
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Observational Studies: What to Believe
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad On transformation of r.v.s. and sigma-finite measures
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Mapping and Recovering Combinations: A Challenge in Combination Theory
  • · Replies 11 ·
Replies
11
Views
4K
Undergrad Group extensions (question about definitions)
  • · Replies 0 ·
Replies
0
Views
2K
Undergrad What branch of electrical engineering uses a lot of probability?
  • · Replies 13 ·
Replies
13
Views
3K
Undergrad How to implement proper error estimation using MC
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad On pdf of a sum of two r.v.s and differentiating under the integral
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How to correct (adjust) Amazon ratings based on the number of reviews
  • · Replies 2 ·
Replies
2
Views
2K
High School Large Scale Data Collection
  • · Replies 9 ·
Replies
9
Views
2K
Graduate Axiom of choice: Replacing a strong condition with a weaker condition
  • · Replies 6 ·
Replies
6
Views
3K
Undergrad Airplane crash probability fallacy
  • · Replies 20 ·
Replies
20
Views
4K
High School Probability - two possible points of view?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad How to find this equivalent of the material conditional?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Tennis Probabilities Challenge
  • · Replies 14 ·
Replies
14
Views
3K
High School Help answer student question about infinity?
  • · Replies 68 ·
3
Replies
68
Views
6K
High School Creating a simple weighting and scoring system
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Correlation vs causality implied by a graph
  • · Replies 45 ·
2
Replies
45
Views
4K
Undergrad Citation needed: Only multivariate rotationally invariant distribution with iid components is a multivariate normal distribution
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Karhunen–Loève theorem expansion random variables
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Time Series Models vs Models Used for Cross-sectional Data
  • · Replies 14 ·
Replies
14
Views
3K
High School Part to Whole comparison
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Calculating the inverse of a function involving the error function
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad How to determine if a set is a semiring or a ring?
  • · Replies 2 ·
Replies
2
Views
3K
High School Do All Digit Sequences in Pi Occur Equally Often?
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad Practice With Proofs? (Algebra, Trig, and Calc)
  • · Replies 6 ·
Replies
6
Views
2K
High School Should I be treating the data I have as a Population or Sample?
  • · Replies 14 ·
Replies
14
Views
2K
Graduate How Can We Analyze an Exam with Varying Multiple Choice Options?
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Supremum of a set, relations and order
  • · Replies 35 ·
2
Replies
35
Views
5K
Undergrad Contrapositive of theorem and issue with proof
  • · Replies 5 ·
Replies
5
Views
2K
High School Binary variables (Absolute values)
  • · Replies 2 ·
Replies
2
Views
2K
High School Is Averaging Individual Slopes Equivalent to Linear Regression?
  • · Replies 4 ·
Replies
4
Views
2K
High School Why did it suddenly become subtractive? (Example of Bayes’ Theorem)
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad How Many Unique Games of Commander Can Be Played?
  • · Replies 4 ·
Replies
4
Views
3K
High School Can an infinite decimal expansion of a number repeat once?
  • · Replies 15 ·
Replies
15
Views
2K
Undergrad A variation of the sleeping beauty problem
  • · Replies 57 ·
2
Replies
57
Views
6K
High School What theorems are available when using modulo arithmetic?
  • · Replies 11 ·
Replies
11
Views
2K
MHB Winning Tennis with Probability 0.3 and 0.7
  • · Replies 4 ·
Replies
4
Views
17K
Graduate Concrete examples of randomness in math vs. probability theory
  • · Replies 11 ·
Replies
11
Views
3K
High School Can I replace ##X_n = i## with ##A## to type less? Rules of math.
  • · Replies 5 ·
Replies
5
Views
1K
Undergrad Are different interpretations of probability equivalent?
  • · Replies 25 ·
Replies
25
Views
3K
High School Maze Proof and Statistical Mechanics
  • · Replies 1 ·
Replies
1
Views
1K
High School Logic Problem: Figuring Out How Many Apples Each Man Ate
  • · Replies 9 ·
Replies
9
Views
3K
Undergrad How to Express Non-regular Prior Distributions by Mathematical Formula
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Stationary time series with seasonality...
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Probability, observers and the multiverse
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Normality of errors and residuals in ordinary linear regression
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Time series analysis and data transformation
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Desirable estimator properties...
  • · Replies 7 ·
Replies
7
Views
3K
Graduate Omniscience principle and generic convergent sequence
  • · Replies 0 ·
Replies
0
Views
2K
Graduate Putting upper bounds from a null result
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Computing the expectation of the minimum difference between the 0th i.i.d.r.v. and ith i.i.d.r.v.s where 1 ≤ i ≤ n
  • · Replies 0 ·
Replies
0
Views
2K
Undergrad Statistical modeling and relationship between random variables
  • · Replies 7 ·
Replies
7
Views
2K
High School Is there a relationship between the harmonic mean and the standard deviation?
  • · Replies 5 ·
Replies
5
Views
2K
High School Does Infinity Times Two Equal Infinity and Other Mathematical Paradoxes?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad The Nuances of Truth in Axioms and Premises
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Nonlinear Least Squares or OLS for Nonlinear Models?
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Criticism of the doctrine of infinity
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Sampling theory and random sample
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad What to do with biased estimators if we don't know the bias term?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Bivariate correlation does not always catch multicollinearity
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Looking for the most suitable distance for binary clustering
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Random variable and elementary events
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Regression line with zero slope and average as best prediction
  • · Replies 2 ·
Replies
2
Views
2K
High School Is everything in math either an axiom or a theorem?
  • · Replies 72 ·
3
Replies
72
Views
8K
Undergrad Stopping Time in layman's words
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Extended version of Cochran's Theorem
  • · Replies 0 ·
Replies
0
Views
2K
Graduate Parameter optimization for the eignevalues of a matrix
  • · Replies 0 ·
Replies
0
Views
2K
Undergrad Variation of the Liar's Paradox
  • · Replies 5 ·
Replies
5
Views
2K
Undergrad Unit Conversions of Force: How to Convert Between Different Units of Force?
  • · Replies 4 ·
Replies
4
Views
2K