Set Theory, Logic, Probability, Statistics Forum

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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.
How to show uniqueness in this statement for integers
  • cbarker1
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2
A family buys a house and has to pay monthly
  • needOfHelpCMath
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2
Undergrad How is uncertainty affected by absolute numbers?
  • legends784
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T 4–4 Deposits needed to accumulate a future sum
  • karush
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2
Major issue to handle this proof
  • nicekiller231
  • · Replies 2 ·
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2
Undergrad Understanding the Paradox of the Cantor Set: A Closer Look at Its Derivation
  • rmberwin
  • · Replies 4 ·
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4
Graduate Minimal Covering Set: System of Distinct Representatives
  • WWGD
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1
Double Induction: Proving Addition is Commutative
  • mathmari
  • · Replies 6 ·
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6
Undergrad Autocorellation of a stochastic process
  • PHstud
  • · Replies 6 ·
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6
Undergrad Distinguishing things by relations
  • Stephen Tashi
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3
Undergrad Predicting new polynomials from known ones
  • volican
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2
Undergrad Find Variance of Ratios in Lab Experiments (No Maths Background)
  • DaanV
  • · Replies 18 ·
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18
Graduate Centering variables, linear regression
  • monsmatglad
  • · Replies 1 ·
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1
Proving a formula ∀x:x∈A∧|x−1|<a⟹x=1
  • solakis1
  • · Replies 3 ·
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3
Undergrad Is an R-Value of 0.93 Considered Strong in Social Sciences?
  • qspeechc
  • · Replies 8 ·
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8
Undergrad Contradiction vs contraposition
  • Mr Davis 97
  • · Replies 4 ·
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4
Undergrad Confidence Intervals for Proportions, n<30
  • WWGD
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2
Graduate Detecting a Torus in a data cloud
  • FallenApple
  • · Replies 7 ·
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7
Graduate Reasonable method for evaluation of bets
  • tom.stoer
  • · Replies 10 ·
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10
Undergrad How Does the MGF Indicate Equal Likelihood in Variable Distribution?
  • fisher garry
  • · Replies 1 ·
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1
Confidence interval to stay awake while listening to the Dean
  • sfm1985
  • · Replies 1 ·
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1
Undergrad Probability of an event in n tries
  • Delta2
  • · Replies 3 ·
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3
How can I find time to study math with a busy schedule and living situation?
  • mathdad
  • · Replies 4 ·
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4
Graduate How does it not contradict the Cohen's theorem?
  • Demystifier
  • · Replies 3 ·
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3
Graduate F-test regression test, when and how?
  • RobosaurusRex
  • · Replies 5 ·
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5
Graduate Axiom of Choice not self evident?
  • FallenApple
  • · Replies 23 ·
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23
Undergrad Reason for the irrationality of (most) square roots?
  • thebosonbreaker
  • · Replies 12 ·
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12
Undergrad Algorithm to create a composite score
  • PatternSeeker
  • · Replies 5 ·
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5
Graduate Why does Polychoric Reduce to two Factors?
  • WWGD
  • · Replies 2 ·
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2
Undergrad What is the Definition of a Relation in Set Theory?
  • Mr Davis 97
  • · Replies 1 ·
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1
Undergrad Numeric impact of constraints on sets (passwords)
  • Randy_Abrams
  • · Replies 1 ·
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1
Calculating Probability for Random Variables with Two Dice
  • mathmari
  • · Replies 6 ·
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6
Undergrad What is the ultimate foundation of mathematics and where does it all begin?
  • Mr Davis 97
  • · Replies 3 ·
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3
Graduate Reasonable length of forecast horizon in a time series
  • ssd
  • · Replies 2 ·
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2
Undergrad Conjectures, Hypotheses, Axioms
  • Leo Authersh
  • · Replies 2 ·
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2
Undergrad Relation of the empty set to vacuous truth?
  • Mr Davis 97
  • · Replies 4 ·
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4
Graduate R2 Addition in OLS Regression: Unrelated Variables?
  • monsmatglad
  • · Replies 4 ·
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4
High School The expectation value of superimposed probability functions
  • redtree
  • · Replies 11 ·
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11
Undergrad The truth value of ##P(x)## → ##Q(x)##
  • McFluffy
  • · Replies 16 ·
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16
Finding the Moment Generating Function
  • joypav
  • · Replies 4 ·
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4
Undergrad [0,1] same cardinality as (0,1)
  • Mr Davis 97
  • · Replies 10 ·
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10
Undergrad Stochastic Minimax partition problem card game
  • NotASmurf
  • · Replies 5 ·
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5
Undergrad Generating a random sample with a standard deviation
  • gamow99
  • · Replies 5 ·
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5
High School Feynman explains the foundations of arithmetic
  • Liberty Bell
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3
Undergrad Counterexample Required (Standard Notations)
  • SSequence
  • · Replies 16 ·
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16
Undergrad Positional Probability of Periodic Object Motion
  • SSGD
  • · Replies 1 ·
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1
Undergrad Bijective function from naturals to primes
  • asmani
  • · Replies 9 ·
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9
High School Name for particular statistical measure
  • onomatomanic
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4
Graduate What is the best program for MSEM? Student Request
  • Knowledge Sponge
  • · Replies 2 ·
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2
Undergrad Data from Normal D is Uncorrelated?
  • WWGD
  • · Replies 2 ·
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2
Probability of 3 people ending up on same team?
  • steve212
  • · Replies 5 ·
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5
Undergrad What is Weighted Histogram Analysis and How Does it Work?
  • ss k
  • · Replies 3 ·
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3
High School Does the Amplitude of White Noise Double When Two Samples are Added Together?
  • entropy1
  • · Replies 5 ·
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5
Graduate Form of all mathematical statements
  • Mr Davis 97
  • · Replies 4 ·
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4
Undergrad How Do You Fit a Sine Wave to Data Points?
  • Simoyd
  • · Replies 5 ·
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5
Graduate Are natural numbers mental abstractions?
  • FallenApple
  • · Replies 1 ·
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1
How do I merge two age groups per 10k from an abortion rate table?
  • samlag
  • · Replies 3 ·
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3
Graduate Markov Chain as a function of dimensions
  • FallenApple
  • · Replies 1 ·
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1
Calculating Frequency, Midpoint, Relative Frequency and Cumulative Frequency
  • freedomdorm
  • · Replies 1 ·
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Are components in a gaussian mixture independent?
  • ConfusedCat
  • · Replies 2 ·
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2
Undergrad Can you calculate probability with infinite sets?
  • gamow99
  • · Replies 4 ·
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4
Undergrad Probability of some sequence in a list of numbers
  • Vrbic
  • · Replies 13 ·
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13
What's the probability of selecting John and then James as disciples of Jesus?
  • mathdad
  • · Replies 3 ·
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3
Undergrad Battle Projections: Predicting Probabilities in Games
  • Kaura
  • · Replies 4 ·
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4
Probability of 2 Green Marbles
  • mathdad
  • · Replies 7 ·
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7
Graph Grammer Function For Two Exotic Graphs Question please.
  • moyo
  • · Replies 4 ·
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4
Undergrad Is It Valid to Cancel Sets in Set Theory?
  • parshyaa
  • · Replies 11 ·
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11
Undergrad Can E1 and E2 be both independent and mutually exclusive events?
  • parshyaa
  • · Replies 5 ·
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5
Undergrad Question Regarding Binary PR Predicates
  • SSequence
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2
Undergrad How Does the Inclusion-Exclusion Principle Relate to Probability Theory?
  • Aslet
  • · Replies 8 ·
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8
Graduate Statistical analysis for comparing trends among multiple variables
  • Baho Ilok
  • · Replies 1 ·
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1
Graduate Analyzing Curvature with Confidence Bands?
  • FallenApple
  • · Replies 11 ·
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11
Undergrad What is the optimal ID key size for minimizing data usage and avoiding overflow?
  • volican
  • · Replies 3 ·
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3
Undergrad Regression on extracted factors
  • Adel Makram
  • · Replies 2 ·
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2
ZFC .... Axioms of Foundation .... and Infinity ....
  • Math Amateur
  • · Replies 9 ·
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9
All boolean functions are computed by a depth 2 circuit
  • evinda
  • · Replies 20 ·
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20
Confusing Venn Diagram problem
  • TheDoctor
  • · Replies 4 ·
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4
Bivariate tests with dummy variables
  • Cookie G
  • · Replies 1 ·
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Undergrad Advanced problems with answer sheet in statistics
  • georg gill
  • · Replies 4 ·
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4
Undergrad ZFC .... Axioms of Foundation .... and Infinity ....
  • Math Amateur
  • · Replies 4 ·
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4
Graduate Composing Likert "Subvariables" into a Single Variable
  • WWGD
  • · Replies 10 ·
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10
A simple (?) combinatorial problem
  • lfdahl
  • · Replies 2 ·
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2
High School Calculating Probability of Rain This Weekend
  • Hawksteinman
  • · Replies 6 ·
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6
Undergrad Order of "Extracted Factors" in SPSS Factor Analysis
  • WWGD
  • · Replies 4 ·
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4
How do I calculate a cumulative reducing percentage for forecasting?
  • gazzap
  • · Replies 2 ·
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2
Undergrad Max and min values -- Finding them in a data set
  • Amany Gouda
  • · Replies 2 ·
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2
Statistics-Mean & Standard Deviation of Absences.
  • mesh
  • · Replies 1 ·
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1
Undergrad How to prove that a function is well-defined
  • Mr Davis 97
  • · Replies 3 ·
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3
Joint probabilty integral boundaries understanding.
  • oriel1
  • · Replies 6 ·
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6
Graduate Testing Fit in Latent Class Analysis
  • WWGD
  • · Replies 0 ·
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0
How to derive $P(PH)$ without using a joint distribution table?
  • tmt1
  • · Replies 1 ·
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1
Is Marginalization Always Valid for Joint Probabilities?
  • tmt1
  • · Replies 1 ·
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1
If S=9999 prove we can find at least 3 students having the same score
  • Albert1
  • · Replies 3 ·
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3
Undergrad What Does The Probability Density Function Tell You?
  • tomtomtom1
  • · Replies 8 ·
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8
Undergrad Proof that the square root of 2 is irrational
  • Mr Davis 97
  • · Replies 4 ·
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4
Graduate References Request: Factor Analysis on Non-Continuous Variables
  • WWGD
  • · Replies 0 ·
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0
Undergrad Cardinality of the Power Series of an Infinite Set
  • jaketodd
  • · Replies 19 ·
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19
Undergrad Fitting a line by minimizing absolute deviation
  • borson
  • · Replies 12 ·
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12
High School Arranging blocks so that they fit together
  • thebosonbreaker
  • · Replies 3 ·
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3
Probability Value Question (left-tailed test)
  • Troy1
  • · Replies 10 ·
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10