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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.
Graduate IQ scores and normal distributions
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Undergrad How do you prove things with null
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Graduate Proving Vacuous Quantification in First-Order Logic
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Graduate Proving Theorem 1.4.13 (ii): Arranging \mathbf{N} in a 2-D Array
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Undergrad Calculating Fraction of Alcohol in Water-Alcohol Mixtures
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Undergrad Is This a Valid Proof by Contradiction for Set Theory?
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Undergrad Permutations and arranging order
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Undergrad A Cuestion on formal fallacies
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Undergrad Game Theory: Superadditivity & Imputation Explained
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Undergrad The Relationship Between Inverse and Image Functions Explained
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Undergrad Correct Notation for Intersections of Real Numbers Sets
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High School What is the probability of a person born in leap year
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Graduate Mystery Symbol: What Does a Big Inverted V Mean?
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Graduate Magic Squares & Cubes: Uncovering a 3D Arithmetic Sequence
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Undergrad Combinatorics Redux Followup: 2 Same, 1 Different Toppings on 3 Pizzas
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High School One more combinatorics question
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Graduate Treating Propagation of Errors in $R^n$ to $R^m$ Transformations
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Undergrad Variation of the coupon problem
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Undergrad Creating Words of Length K from {1,...,k}: A Recursive Approach
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Graduate Permutations on 3n Terms and Conditions: Calculating Total Possibilities
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Undergrad Rational and Irrational Number Set proof.
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Graduate Can You Estimate Parameters for a Non-Closed Form Probability Distribution?
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Undergrad Is a gaussian distribution 'like a sine wave'
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Undergrad Second opinion for an Index Problem
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Undergrad Calculate the probability for 2 different digits in 4 cells.
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Graduate Does E(X / Y) = E(X) * E(1 / Y) ?
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Graduate Uptime of Successful Event in 60s Experiments
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Graduate Induction Limitations in Proving Countable Sets: Understanding Analysis
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High School Probability of rolling a 6 on the second roll of a die
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Undergrad Wich test for few events statistic
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Graduate Creating fractals from nothing?
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Graduate Standard Deviation: Formula (8) Approximation Explained
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Graduate What Are Surreal Numbers and Their Binary Expansion?
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Graduate What Are the Different Orders of Infinity and How Do They Compare?
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High School Unsolvable Ball Weights Problem: Help Needed with 4 Balls and Scales
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High School Solve Probability Puzzle: 1 in 25 Chance?
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Undergrad Statistical Test for Differences Between Groups with Varying Sizes
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Undergrad Probability and simultaneous sampling/selecting
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Graduate When are 2 models comparable using an F Test?
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Undergrad Designing an Equitable Points System for Ranking Sports Teams in Tournaments
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Undergrad Solve Logic Problem Using Pigeonhole Principle
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High School Calculating Probability of Withdrawing 3 Discs in Any Order
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Undergrad Standard Deviation of Sets X & Y: s_{XY}=s_{X}\overline{Y}+s_{Y}\overline{X}?
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Graduate Sports Illustrated Jinx : Regression to the Mean
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Graduate Empirical tests on DNA sequence
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Undergrad Discrete and continuous problems
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Undergrad Zinc difecient Mother and birth weight problem
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Undergrad Proving Equivalence Relations with a Given Condition
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Graduate Showing that the following isn't complete
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Undergrad How do I find the equivalent statement to the statement ~(p -> ~q)
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Graduate How Does Halmos Generalize the Cartesian Product in Set Theory?
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Graduate Calculating Conditional Expectation for Continuous and Discrete Random Vectors
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Graduate Is There a Closed Form for This Recursive Probability Function?
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Undergrad Gambling problem/ standard deviation
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Graduate Is the Axiom of the Power Set Redundant in Set Theory?
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High School How Many Socks Must a Blind Man Take to Guarantee a Matching Pair?
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Graduate Can Gödel's Incompleteness Theorems Help Solve Advanced Logic Problems?
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Graduate Skew & Kurtosis: Weighting Signficance
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Graduate Fractional Dice - Investigating Discontinuity in Nature
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Undergrad What is the Probability of a Coin Toss Avoiding Lines in 2D Cartesian Plane?
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Undergrad Chop a stick randomly into three pieces, Probablity
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Graduate Transcendentals and definability
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Undergrad Should You Swap or Stick in Deal or No Deal?
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Undergrad Variance and goodness of fit tests
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Undergrad Graph Problem: (n+1) Knots & Edges - How Many Possible Graphs?
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High School Real-Life Examples of Difference Equations, Permutations & Probability
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Graduate Calculating Mean and Variance of a Ratio of Gamma-Distributed Random Variables
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Undergrad How to calculate confidence limits in bernoulli trials with only one outcome.
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Undergrad When not to use the Student t test?
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Graduate Solve Markov Chain Problem: Find Initial Probability Vector p(1)
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Graduate Set Theory to Show Transcendental Numbers Exists
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Undergrad A not false statement is equivalent to a true statement.
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Undergrad Where am I going wrong? (Standard Deviation)
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Undergrad Help with syringe pressure and Students T test
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Undergrad Understanding Linear Codes for Homework
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Undergrad Calculating Probability for Repeated Numbers in Random Number Generation
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Graduate Would measures like skewness or kurtosis magnify uncertainty?
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Undergrad How Do You Solve a Poisson Distribution Problem Where 3P(X=1)=P(X=2)?
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Graduate A question in combinatorics. (perhaps implementation of the pigeon hole principle).
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Graduate Statistics and the Kennedy Assassination witnesses
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Graduate What is the best approach for calculating long-term probability using a PDF?
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Graduate How Do You Model a Random Variable with Random Parameters in Its Distribution?
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Graduate How to Calculate E(XY) for Random Variables X and Y?
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Graduate Calculating E[B(u) B(u+v) B(u+v+w)] with Brownian Motion
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Graduate Understanding Brownian Motion with Weiner Integral and Delta Functions
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Undergrad Logic & Math: Can Equations Express Cause & Effect?
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Graduate Estimating p-value for Wilcoxon Signed-Rank Test
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Undergrad Dice problem that I can't fully get my head around
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Graduate Calculating Conditional Beta Distribution with Binomial Parameters
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Undergrad Computing Type 1 Error Rate for Coin Test
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Undergrad Sets of numbers and Gaussian distribution
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Graduate How Does Gender Interaction with Experience Affect Salary Differences?
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Graduate Generating function expectation
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Undergrad Is Gender Linked to Brand Preferences According to Chi-Square Analysis?
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Graduate Deriving probability distributions
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High School How Should I Structure a High School Course on Experiment Design and Statistics?
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Undergrad How to estimating purchase amount to achieve servicelevel
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Graduate Describing the distribution of n random variables
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Graduate Solving a Logic Maze: Shortest Path to the Goal
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Undergrad How Can I Calculate Sample Accuracy for a Web Poll?
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