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 How are inverse images used to prove set inclusions?
- drmarchjune
- · Replies 2 ·
Graduate Discrete Math: Symmetric Closure & Numerical Analysis
- thesevenspark
- · Replies 1 ·
Graduate Compactness in Topology and in Logic
- Bacle
- · Replies 3 ·
Graduate Why Is It Difficult to Grasp the Concept of an Open Set?
- phiby
- · Replies 8 ·
Graduate Density and some other function to find
- Anna Kaladze
- · Replies 1 ·
Undergrad Why Is Pr(X=#) Zero in Continuous Distributions?
- eMac
- · Replies 1 ·
Undergrad Why the principal nth root is unique ?
- mahmoud2011
- · Replies 5 ·
Graduate Estimating the standard deviation
- Niles
- · Replies 2 ·
High School Winning the Lottery: Probability of 3 Friends Winning
- kthouz
- · Replies 2 ·
Undergrad Need help solving CDF (Cumulative distribution function)
- invictor
- · Replies 4 ·
Graduate Probability measures and convex combination
- Fredrik
- · Replies 4 ·
Undergrad Are Record Sizes Jointly Exhaustive?
- flyingpig
- · Replies 10 ·
Graduate Set-Theory, a paradox from Zeno and Russell/Cantor confusion.
- Ntstanch
- · Replies 24 ·
Graduate Forming set with infinite elements
- jagbrar
- · Replies 3 ·
Graduate Understanding Open Sets in Topology
- gliteringstar
- · Replies 5 ·
Undergrad What is Heaviside Function? Tutorial & Application
- zli034
- · Replies 2 ·
Undergrad Probability of at Least One Girl in a Five-Child Family | Independent Births
- tramp
- · Replies 2 ·
Graduate Proving two events are independent given that one has a probability of 1
- LCBlazer07
- · Replies 3 ·
Undergrad A question about intersection of system of sets
- mahmoud2011
- · Replies 30 ·
Graduate What is the distribution of difference of two Gamma Distributions ?
- ashish1789kgp
- · Replies 7 ·
Undergrad Tell if this Argument is valid (Propositional Logic)?
- Jakes
- · Replies 1 ·
Graduate How does knowledge affect randomness?
- loourr
- · Replies 12 ·
What are some potential topics for scientific research?
- elf_abellon
- · Replies 4 ·
Undergrad What statistical analysis should/could I use in this scenario?
- DntInferno
- · Replies 1 ·
Undergrad Given a random number from 0-3, return a random number from 0-6
- gsingh2011
- · Replies 5 ·
Undergrad Equations for Various Functions ?
- Jakes
- · Replies 1 ·
Undergrad Find the Composion of this relation
- Jakes
- · Replies 3 ·
High School How to create a matrix from this relation
- Jakes
- · Replies 2 ·
Undergrad Probabilities involving Mins and Maxes
- muzihc
- · Replies 5 ·
Graduate Jacobian Matrix of Residuals
- zli034
- · Replies 3 ·
Undergrad Binomial Probability Problems: Finding Probability for Glasses and DMF Teeth
- eMac
- · Replies 6 ·
Undergrad How Do You Calculate the Standard Deviation of Profit Per Lottery Ticket?
- koudai8
- · Replies 2 ·
Undergrad Detecting gradual change in an oscillating data set.
- woodssnoop
- · Replies 1 ·
Undergrad Ordinal Numbers: Bridging English & Set Theory
- dalcde
- · Replies 2 ·
Undergrad Game Show Theory: Should You Switch Choices?
- KingBigness
- · Replies 3 ·
Graduate Confused about set-theoretic definition of a function
- poochie_d
- · Replies 4 ·
Graduate Random Variable Measurability w.r.t. Sigma Fields
- empyreandance
- · Replies 16 ·
Undergrad Statistics - Within-subjects for categorical data
- JoniGuerrero
- · Replies 17 ·
Undergrad Regression SS in multiple linear regression
- kingwinner
- · Replies 2 ·
Undergrad Logic confusion - formally clear but practically not so.
- Tomer
- · Replies 7 ·
Graduate Estimating Error Functions for very large values
- raymo39
- · Replies 1 ·
Graduate Why does the sum 1/log(n) behave like 1/log(n)?
- nonequilibrium
- · Replies 8 ·
Undergrad Set builder notation and proofs
- Stephen Tashi
- · Replies 6 ·
Undergrad Formula for combinations with repeting objects
- musicgold
- · Replies 2 ·
High School Help, find a statement using a truth table
- jhlee127
- · Replies 1 ·
Graduate Is My Proof on Finite Sets and One-to-One Correspondence Correct?
- AdrianZ
- · Replies 3 ·
Undergrad Permutation Question with "ABERRATIONAL" - Get Help & Insight
- Stellaferox
- · Replies 8 ·
Graduate Resolution of Russell's and Cantor's paradoxes
- DanTeplitskiy
- · Replies 79 ·
Undergrad Find Expected Number of Cakes per Person: Bernoulli to Gamma
- ackr1201
- · Replies 3 ·
Graduate Trivial Question on Gamma Distribution Function
- I_am_learning
- · Replies 2 ·
Undergrad Intersection of sets with infinite number of elements
- autre
- · Replies 3 ·
Undergrad Meaning of a union symbol in front of a set?
- df606
- · Replies 2 ·
Graduate No Probability Measure for Equal Probability of Countable, Infinite Set
- johnG2011
- · Replies 17 ·
Undergrad Is there an optimal upper limit for power in statistical testing?
- tmp_acnt
- · Replies 5 ·
Undergrad Calculate Odds of Getting Hit by Falling Satellite
- steve321
- · Replies 1 ·
Graduate Why Do Lines 3 and 4 Equate in Random Walk Probability Calculations?
- tanzl
- · Replies 3 ·
Graduate Solving Overdetermined Problems: X2 Distribution Requirements
- Niles
- · Replies 8 ·
Graduate Nonetheless, FOL is a very good start to formalizing physics.
- mun
- · Replies 1 ·
Undergrad Calculating a Bijective Function: f(N0)
- blob84
- · Replies 1 ·
Undergrad Negation of Implication: Tautology or Contradiction?
- anonymity
- · Replies 3 ·
Graduate Joint probability for an infinite number of random variables,
- rmas
- · Replies 5 ·
Graduate Joint hipergeometric and binomial probability?
- w0lfshad3
- · Replies 4 ·
Graduate What is the probability of #4
- w0lfshad3
- · Replies 1 ·
High School Can someone please answer this probability question based on coin flip?
- dream2rule9
- · Replies 1 ·
Undergrad Calculating Overall Variance & Standard Deviation for 3 Sets of Data
- Excom
- · Replies 3 ·
Graduate A simple question that I don't know what I should call it
- AdrianZ
- · Replies 9 ·
Undergrad How Many Vertices Does a Planar Graph with Degree 4 and 10 Regions Have?
- intelli
- · Replies 1 ·
Undergrad Can a Monkey Rearrange Letters to Spell Illinois and Tennessee?
- uiuc2014
- · Replies 1 ·
Graduate Can we represent pi as a dedeking cut in the rationals
- Khichdi lover
- · Replies 2 ·
Graduate Proving the Limit of a Sequence: A Formal Proof Refuting an Informal Claim
- evagelos
- · Replies 14 ·
Unsafe street leads to safer drivers?
- noagname
- · Replies 2 ·
Graduate Forming a sigma field from a countable infinite set
- johnG2011
- · Replies 1 ·
High School Very simple maths question to determine my fate
- J3N0VA
- · Replies 9 ·
Graduate How Can I Prove the Second Equation from the First in a Random Walk Probability?
- jakey
- · Replies 5 ·
High School What Is the Correct Probability of Selecting Three Candies of the Same Kind?
- tramp
- · Replies 6 ·
Graduate Is Q Complete in the Context of the Completeness Axiom?
- Wingeer
- · Replies 13 ·
Graduate Choosing Normalization to Create Bell Curve with Mean 1
- vaibhavtewari
- · Replies 2 ·
Graduate Prove Pr(t<X<t+dt)=f(t)dt - Get Help Here!
- rukawakaede
- · Replies 6 ·
Graduate Equating Field of Elements via the Radix
- SubZir0
- · Replies 2 ·
Graduate What is the negation of the statement
- yxgao
- · Replies 9 ·
Graduate Proving (A∩B)' = A'∪B' Without De Morgan's Method
- solakis
- · Replies 9 ·
High School What don't I get about coin tossing?
- Intervenient
- · Replies 3 ·
Graduate Generating multivariate normal vectors under constraints
- mockle
- · Replies 4 ·
Graduate What is the definition of supremum and how can it be used to compare sequences?
- Somefantastik
- · Replies 2 ·
Undergrad Distributivity Theorem in Boolean Algebra
- SpaceDomain
- · Replies 5 ·
Undergrad Standard deviation versus absolute mean deviation
- Twinbee
- · Replies 3 ·
Undergrad Discrete Mathematics - (A∪B)-(A∩B)=(A-B)∪(B-A) - prove by cases?
- nigara
- · Replies 4 ·
Graduate Why is likelihood function defined as such?
- CantorSet
- · Replies 3 ·
Undergrad Z-score/percentile rank question
- ACHQ
- · Replies 7 ·
Graduate Gaussian distributed falling drops on a non-orthogonal plane
- condorino
- · Replies 10 ·
Graduate CDF of a normal vector is there a closed form?
- dabeth
- · Replies 3 ·
Graduate How Many DNA Molecules to Sample for Sufficient Unique Sequences?
- 1eray
- · Replies 1 ·
Graduate Consistent estimator for parameter from Rayleigh distribution.
- pirce
- · Replies 1 ·
Undergrad Methods for computing partial-costs of product bundles?
- KingNothing
- · Replies 7 ·
Graduate Deriving the standard deviation of a resultant vector
- selane
- · Replies 5 ·
High School Probability of Correctly Answering 1 of 4 Questions
- Yh Hoo
- · Replies 11 ·
Undergrad Ipv6 unique address for each person
- Smarky
- · Replies 1 ·
Undergrad Probability Help: Formulas for Random Variables with Mean 5 and Variance 12
- xhallie
- · Replies 1 ·
High School Probability Notes: HK Syllabus & Recommendations
- dalcde
- · Replies 3 ·
Undergrad I think this is my first proof but constructing it
- DrummingAtom
- · Replies 1 ·