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.
Graduate Reliability and MTTF, what's going on?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Interpreting a graph of lab data.
  • · Replies 3 ·
Replies
3
Views
2K
MHB Let A and B be two subsets of some universal set. Prove that....
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Cardinality of infinite subset of infinite set
  • · Replies 3 ·
Replies
3
Views
2K
MHB Find Difference in Total Cost for Engagement Ring at 2 Jewelers
  • · Replies 1 ·
Replies
1
Views
2K
MHB How to Solve Investment Word Problems Involving Interest Rates and Profits?
  • · Replies 1 ·
Replies
1
Views
3K
MHB Can 101 Discs of Radius 1/2 Cover a Rectangle That 25 Discs of Radius 1 Can?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How to prove zero correlation between residuals and predictors?
  • · Replies 4 ·
Replies
4
Views
17K
Undergrad Calculating Probability of Score Comparison between Two Distributions
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad When to use equal to or equivalent to?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Solving third order recurrence relation
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Creating formula from musical bar test population
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Challenge 8: Sub-Gaussian Variables
  • · Replies 9 ·
Replies
9
Views
5K
MHB Trouble proving multiplication cancellation law fails
  • · Replies 5 ·
Replies
5
Views
3K
MHB Solve Seating Arrangement of 4 Men and 4 Women No Pair Next
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How to Perform Logarithmic Regression by Hand?
  • · Replies 1 ·
Replies
1
Views
6K
Graduate Can Both Hypotheses be Accepted with a Confidence Level of 68%?
  • · Replies 3 ·
Replies
3
Views
2K
MHB Proving the Recursion Formula for $(x_n)$ Using Strong Induction
  • · Replies 3 ·
Replies
3
Views
2K
MHB Finding a general formula for a sequence (x_k)
  • · Replies 5 ·
Replies
5
Views
2K
High School What is the technique for creating all combinations from three pots of balls?
  • · Replies 1 ·
Replies
1
Views
2K
MHB Solve Induction Problem: cn <= n log2n
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Example of Probability Distribution Not in Exponential Family
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How Many Combinations of Digits 0-7 Sum to 7?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Basic Statistics: Reciprocal Variable Better Fit?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Difference between propositional language and set of all formulas
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the inductive step for proving mathematical induction?
  • · Replies 12 ·
Replies
12
Views
3K
Graduate Sum of all possible products when each product has a maximum
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How to evaluate an ordered conditional PDF ?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Do We Assume Logic for Mathematics?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Stochastic Taylor's Expansion (Ito Rule)
  • · Replies 1 ·
Replies
1
Views
3K
MHB What is the number of combinations for assigning 10 people to 5 tasks?
  • · Replies 12 ·
Replies
12
Views
5K
Graduate Defining things in logical statements
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Calculating a covariance matrix with missing data
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Normal distribution and star density in a Galaxy
  • · Replies 2 ·
Replies
2
Views
3K
MHB Find Recurrence Relation for Flipping n Switches
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Why Is the Probability of Picking a Specific Number from [0,1] Zero?
  • · Replies 18 ·
Replies
18
Views
3K
MHB Applied Stochastic processes: difference of uniform distributions
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Other than ZFC, what other axiomatic systems are useful?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Is it worth studying mathematical logic?
  • · Replies 10 ·
Replies
10
Views
19K
Undergrad Confidence interval/statistic question
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad How to do a chi squared test on a linear fit
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad Is x < ∞ Always Finite?
  • · Replies 15 ·
Replies
15
Views
2K
Graduate Role of classical logic in studying logic
  • · Replies 6 ·
Replies
6
Views
5K
Graduate Expected values of random variables
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Stochastic processes with memory
  • · Replies 2 ·
Replies
2
Views
2K
MHB Estimate \theta with Importance Sampling: Plot Convergence vs Sample Size
  • · Replies 24 ·
Replies
24
Views
5K
MHB Natural Numbers ⊆/⊄ Rationals: Infinite & Uncountable Sets
  • · Replies 1 ·
Replies
1
Views
1K
MHB Describing an equivalence class?
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad What is the domain of y = log [(4-t)^(2/3)] ?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Proving Epimorphism: Understanding Surjective Morphisms
  • · Replies 3 ·
Replies
3
Views
2K
MHB Heat Capacity: Mixing 100g Water @2C & 50g Ice @-4C
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad How can I calculate the weight of chocolate in a tank without a scale?
  • · Replies 7 ·
Replies
7
Views
4K
Undergrad How to find Confidence interval
  • · Replies 2 ·
Replies
2
Views
2K
MHB Do Intervals [0, 2) and [5, 6) U [7, 8) Have the Same Cardinality?
  • · Replies 3 ·
Replies
3
Views
3K
Graduate Why is Axiom of Induction Needed as an Axiom? (Peano's Axioms)
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Mean time between independent events
  • · Replies 1 ·
Replies
1
Views
2K
MHB Monte Carlo method to generate standard normal
  • · Replies 4 ·
Replies
4
Views
2K
MHB What is P(B) given P(A|~B) = 1/2 and P(B?AUB) = 2/5?
  • · Replies 1 ·
Replies
1
Views
2K
High School How to find the proportion of people who play an instrument
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad What sort of Math do I need for a plagiarism detection algorithm?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Deriving conclusion from a small data set
  • · Replies 6 ·
Replies
6
Views
2K
MHB Calculating Uncertainties of Measured quantities (Physics)
  • · Replies 1 ·
Replies
1
Views
2K
MHB A multi-part PMF/joint PMF question
  • · Replies 5 ·
Replies
5
Views
2K
MHB Why is my solution for part b) of the geometric series question incorrect?
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Is It Possible to Prove Euclid's Propositions with a New Logic?
  • · Replies 10 ·
Replies
10
Views
3K
Graduate Cantor set ℵ , inductive proofs by openly counting.
  • · Replies 11 ·
Replies
11
Views
4K
MHB Exponential Func: Solving ln6=ln2+ln3
  • · Replies 1 ·
Replies
1
Views
3K
High School Venn Diagram: Help for A∪(A∩B) and A∩(A∪B)
  • · Replies 2 ·
Replies
2
Views
2K
What is this Symbol - Is it Q? Answers Here
  • · Replies 2 ·
Replies
2
Views
2K
MHB What is the expected time difference for two posts in the same minute?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Find k Such That Log Equation Has Real Solution
  • · Replies 25 ·
Replies
25
Views
4K
Undergrad Assigning 5 Grades to 7 People: How Many Possible Combinations?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Solving Probability Integrals with Monotone Convergence Theorem
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Proving Existence of an Element in a Non-Empty Subset of Natural Numbers
  • · Replies 8 ·
Replies
8
Views
5K
MHB Trying to calculate E[(XY)^2] for X, Y ~ N(0, 1) and Cov(X, Y) = p.
  • · Replies 1 ·
Replies
1
Views
3K
MHB Answer:Finding Value of k & Probability of A Winning at Least 2 Matches
  • · Replies 4 ·
Replies
4
Views
2K
MHB Geometric rv and exponential rv question
  • · Replies 1 ·
Replies
1
Views
1K
MHB Bayes' theorem problem, Struggling with this the whole night, .Thank you.
  • · Replies 4 ·
Replies
4
Views
5K
High School Percent Difference Between Two Number
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Transformation of pmf; bivariate to single-variate
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Is R Transitive if R^2 is a Subset of R?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Density of continuous random variables?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate How Can Boolean Polynomials Determine Consistency in Propositional Formulas?
  • · Replies 1 ·
Replies
1
Views
2K
MHB Combinatoric Proof: n Choose 2 Choose 2 = 3 (n+1) Choose 4
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Question on the logic of rational roots theorem
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Question about Axiom of Specification
  • · Replies 12 ·
Replies
12
Views
6K
MHB Not quite convinced of this proposition i need to prove....
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Probability of Empty Intersection of Randomly Chosen Planes?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Moment generating function, CDF and density of a random variable
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Probability of Multiple Tetrahedron Rolling Multiple Times
  • · Replies 6 ·
Replies
6
Views
3K
Graduate Help me get a girlfriend with math (optimal stopping theory/secretary
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Probabilities on Non-Standard Models.
  • · Replies 2 ·
Replies
2
Views
2K
MHB How many bytes contain exactly two 1's?
  • · Replies 4 ·
Replies
4
Views
3K
MHB How many times will this statment be run?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Help me understand this example of applying Bayes' Theorem
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad What's the point of inductive proofs?
  • · Replies 7 ·
Replies
7
Views
2K
MHB Can Every Integer Be Decomposed into an Odd Integer and a Power of 2?
  • · Replies 4 ·
Replies
4
Views
2K
MHB Q&A: Understanding Part C of a Round Trip Problem
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Comparing two hypotheses with uncertainties
  • · Replies 5 ·
Replies
5
Views
2K
Graduate What is the difference between sets and classes in set theory?
  • · Replies 6 ·
Replies
6
Views
2K