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.
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Undergrad Is it possible to prove that -(-A)=A using the concept of set subtraction?
- Kamataat
- · Replies 4 ·
Graduate How can we prove theorems in mathematics without using specific functions?
- C0nfused
- · Replies 10 ·
Graduate What the hell is going on with this recursive function
- gravenewworld
- · Replies 17 ·
Graduate Prove Jensen's Inequality: Var[X] ≥ (E[X])^2
- jetoso
- · Replies 1 ·
Undergrad Spearman's Rank Correlation Coefficient
- fbsthreads
- · Replies 1 ·
Graduate Quantifiers, emptiness, and vacuous truth
- honestrosewater
- · Replies 9 ·
High School Quick set builder notation question
- EProph
- · Replies 6 ·
Graduate Finding expected count in interval for gamma distribution with known mean and variance
- semidevil
- · Replies 1 ·
Graduate To parenthesize, or not to parenthesize (that is the question)
- honestrosewater
- · Replies 8 ·
High School Just a general probablility question
- semidevil
- · Replies 7 ·
Graduate Can infinities have different sizes?
- DoubleMike
- · Replies 59 ·
Undergrad How do I find the radix r of equalities?
- Ksingh30
- · Replies 12 ·
Graduate Can This Propositional Logic Proof Be Presented More Formally?
- gnome
- · Replies 7 ·
Undergrad What are the domain, range, x-intercept, and vertical asymptote of y=logₓ4?
- Erin_Sharpe
- · Replies 8 ·
Graduate Events {(-1)^n i.o.} and {1/n Almost Always} in Probability Space (R, B, P)
- jetoso
- · Replies 1 ·
Undergrad Why Does Switching Doors Give You a 2/3 Chance of Winning?
- bomba923
- · Replies 13 ·
Undergrad How do calculus and statistics relate in advanced data analysis?
- bomba923
- · Replies 1 ·
High School Is the Probability of Events Always 50% Regardless of Odds?
- Moneer81
- · Replies 11 ·
Graduate Why does Davis, Sigal & Weyuker use the more complex form for primitive recursion?
- gnome
- · Replies 1 ·
Undergrad Something to be a subset of something?
- Kamataat
- · Replies 6 ·
Graduate Proof that E[X] = ∫P(X>x)dx with indicator variables
- cepheid
- · Replies 6 ·
High School What Does It Mean When We Define a Variable in Mathematics?
- C0nfused
- · Replies 1 ·
Graduate Proving Borel Sets from Finite Sample Spaces
- jetoso
- · Replies 2 ·
Graduate How do functions relate to operations in mathematics?
- C0nfused
- · Replies 3 ·
Graduate How does \sigma \leq \mu relate to the subset relation and ordering of sets?
- gnome
- · Replies 3 ·
Graduate Proving Sigma-Algebra Generated by Elementary Events
- jetoso
- · Replies 8 ·
Graduate Pearson Correlation Coefficient: How Did He Derive It?
- bomba923
- · Replies 2 ·
High School Confusion about empty set and singleton sets as elements
- gflores
- · Replies 1 ·
Undergrad Average Number of Fill Commands Needed to Turn a Billion Pixel Screen White
- Bartholomew
- · Replies 5 ·
Graduate Why is the intersection of nested sets E_x empty when x approaches zero?
- dlee48
- · Replies 11 ·
Graduate Solving a Probability Problem for Thermodynamics: Stirling's Approximation
- jessawells
- · Replies 1 ·
Graduate What happens to the coefficient in O(t(n)b^{t(n)})?
- gnome
- · Replies 6 ·
Graduate Finding the smallest σ algebra containing two subsets
- gimmytang
- · Replies 9 ·
Graduate Transformations of Discrete RVs
- dogma
- · Replies 1 ·
High School Combinations of three letters from A,A,B,B,C,C,D
- Omid
- · Replies 4 ·
Graduate Converting CNF to DNF: Does it Always Work?
- gnome
- · Replies 2 ·
Undergrad I hope this is the right place
- JasonRox
- · Replies 5 ·
High School How Do You Calculate Probabilities for Multiple Coin Tosses?
- gtpdriver
- · Replies 5 ·
Graduate Why does POS_λ(α) exclude λ from clauses using set brackets?
- gnome
- · Replies 2 ·
Graduate Constructing a Pseudo-Probability Space from an Outer Measure in V
- phoenixthoth
- · Replies 17 ·
Undergrad Will someone hit this softball out of the park?
- feveredego
- · Replies 1 ·
Undergrad Statistical analysis: data filtering
- russ_watters
- · Replies 2 ·
Undergrad Combinations with mutually exclusive objects
- Ryoukomaru
- · Replies 3 ·
Undergrad Is poker skill-based like the basket game with probability?
- Physics_wiz
- · Replies 3 ·
Graduate Should the Possibility of Never Rolling a Six be Included in the Sample Space?
- cepheid
- · Replies 1 ·
Graduate How many primes are there in a certain range of numbers?
- newcool
- · Replies 1 ·
Undergrad Winning Probability in Card Game: 1/4 + (13/51)?
- dsrunner
- · Replies 2 ·
Undergrad How Many Flips to Get 10 Heads/Tails in a Row?
- cAn
- · Replies 6 ·
Undergrad Does finite math cover all the logic topics, or should I take logic instead?
- loli12
- · Replies 5 ·
High School Ank pays 5% simple interest on money deposited
- Erin_Sharpe
- · Replies 1 ·
High School What are s² and s in statistics?
- matrix_204
- · Replies 1 ·
Undergrad What Percentage of Bags Are Rejected Due to Weight Limits?
- Matt.D
- · Replies 1 ·
Graduate What is entropy of a set?
- phoenixthoth
- · Replies 1 ·
Graduate Why does {{x},{x,y}} define an ordered pair?
- Perion
- · Replies 10 ·
Graduate Cardinality of Real-Valued Functions on R
- phoenixthoth
- · Replies 5 ·
Graduate Online resource for type theory?
- phoenixthoth
- · Replies 33 ·
Undergrad How Many Ways to Arrange Marbles in a 6x6 Grid Without Color Repetition?
- gonzo
- · Replies 1 ·
Undergrad Game theory resources for beginners with science reading background
- SuperNatural
- · Replies 5 ·
High School Is there a proof that 1+1=2 or do we just accept it?
- afton
- · Replies 34 ·
Graduate Can Mathematical Certainty be Achieved for Common Claims?
- Ivan Seeking
- · Replies 11 ·
Undergrad Question regarding Binomial expansion.
- Sanosuke Sagara
- · Replies 2 ·
Undergrad Binomial expansion with negative exponents
- Sanosuke Sagara
- · Replies 3 ·
High School When does the policeman catch the thief 100 meters ahead?
- aprao
- · Replies 1 ·
High School What Is the General Formula for Calculating Combinations?
- XenNetwork
- · Replies 4 ·
Graduate Are definable numbers really countable across different logical theories?
- Hurkyl
- · Replies 5 ·
Graduate Cardinality of Complex vs. Real
- Parth Dave
- · Replies 5 ·
Undergrad Why does the probability scale go from 0 to 1?
- Cheman
- · Replies 11 ·
Undergrad Probability of winning a case with two independent conditions (60% and 70%)
- Ulnarian
- · Replies 10 ·
Undergrad Hold'em poker hands simulation
- Erazman
- · Replies 11 ·
Undergrad Inviting friends to 7 parties and seating arrangements
- twoflower
- · Replies 10 ·
Undergrad Is Probability Truly Meaningful in Research Studies?
- the number 42
- · Replies 3 ·
Detecting copied assignments by categorizing variations
- somy
- · Replies 4 ·
Graduate How to Find c for Given Joint PDF?
- semidevil
- · Replies 2 ·
Graduate Separated topology and existence of a metric
- seratend
- · Replies 4 ·
Undergrad How do you find moment generating function?
- semidevil
- · Replies 1 ·
High School Evaluating 12 C 2: How to Simplify Without a Calculator
- qwexor
- · Replies 6 ·
Graduate Why is Fourier transform of exp(ix) a delta?
- jasonc65
- · Replies 5 ·
High School Calculating Average Speed in a Two-Mile Trip
- StupidHead
- · Replies 4 ·
Undergrad Phi- normal distribution (how to look normal tables )
- logicalman
- · Replies 3 ·
Graduate Flaw in the proof that all horses have infinite legs
- StupidHead
- · Replies 12 ·
Undergrad Smoker Tree Diagram: Calculate P(H|D)
- dogma
- · Replies 2 ·
Undergrad Normal and lognormal distribution
- omgitsroy326
- · Replies 1 ·
Undergrad Why is ANOVA more like regression than a t-test?
- the number 42
- · Replies 2 ·
Undergrad Probability of rolling 4 of a kind in one Yahtzee roll
- v0id
- · Replies 6 ·
Graduate Russell's type theory, ZF set theory
- Euclid
- · Replies 1 ·
Graduate Proving Limit Points in Point Sets for Scientists
- Timberwoods
- · Replies 3 ·
Undergrad Question on Fisher's Exact Test
- Mathwizard6254
- · Replies 1 ·
Undergrad Balls in Boxes, Probability Question
- dogma
- · Replies 7 ·
Undergrad Expected Value of X in Binomial Trials
- nbalderaz
- · Replies 2 ·
Undergrad Sample size needed for power of a study
- Math Is Hard
- · Replies 5 ·
Undergrad How do I calculate the number of elements in set Z using set theory?
- courtrigrad
- · Replies 2 ·
Graduate How Do You Convert a PDF to a CDF Using Integration?
- semidevil
- · Replies 1 ·
Undergrad What are Some Questions on Probability Distributions?
- kikar
- · Replies 6 ·
Graduate Understanding Partial Order Relations and Their Definition on X={a,b,c,d,f}
- Townsend
- · Replies 2 ·
Undergrad How to calculate some probabilities?
- Mastermind
- · Replies 1 ·
Undergrad Average Throws Needed for All Dice Points to Appear
- Ed Wiggins
- · Replies 4 ·
Undergrad Solve Travel Problem: 10 Fans in 3 Taxis
- Gotcha
- · Replies 1 ·
High School Percent Error When Measured Value is 0 - Always 100%
- dduardo
- · Replies 1 ·
Undergrad Counting Unique 7-Digit Phone Numbers - No Repeats
- THA
- · Replies 3 ·
Undergrad Finding standard deviation for normal approximation of bulldozer failure probability
- gradds
- · Replies 3 ·