User sophie-germain

7 votes

2 answers

10k views

The real line, and finite complement topology is not a hausdorff

general-topology

asked Oct 1, 2014 at 14:28

3 votes

1 answer

2k views

The Height of a polynomial

real-analysis

asked Sep 10, 2014 at 6:26

3 votes

1 answer

1k views

Cramer-Rao Casella Berger 7.38 for exponential family

asked Apr 30, 2017 at 22:58

2 votes

1 answer

2k views

There are n balls in a jar labeled with numbers 1,2,...,n. A total of k balls are drawn WITH REPLACEMENT.

probability combinatorics

asked Aug 28, 2018 at 4:52

2 votes

1 answer

56 views

Find the PDF of G(X,Y)=$(X,\frac{9}{(X+Y)^{2}})$ Transformation given the pdf of $f_{XY}(x,y)$

probability multivariable-calculus probability-distributions

asked Feb 2, 2017 at 23:30

2 votes

2 answers

3k views

proof limit of $\frac{1}{(x^{2}-1)}$ = -1 using $\epsilon - \delta$ as $x_{0} \to 0$

real-analysis limits epsilon-delta

asked Apr 5, 2016 at 2:36

2 votes

1 answer

240 views

open sets in the order topological space

general-topology

asked Sep 9, 2014 at 5:59

2 votes

2 answers

491 views

Show $2<p^{2}<3$ is not compact

real-analysis

asked Oct 16, 2014 at 8:34

1 vote

1 answer

130 views

Separation and Hausdorff

general-topology

asked Oct 20, 2014 at 0:15

1 vote

0 answers

212 views

Separated Spaces and a Partition Differences?

general-topology

asked Oct 20, 2014 at 7:03

1 vote

0 answers

142 views

Bounded interval such that finite sub collections are nonempty, but entire intersections are empty

real-analysis

asked Sep 16, 2014 at 6:54

1 vote

1 answer

3k views

example of non compact set for rationals

real-analysis

asked Sep 21, 2014 at 1:00

1 vote

1 answer

273 views

when does $\limsup(a_n + b_n) < \limsup(a_n) + \limsup(b_n)$ holds?

real-analysis

asked Sep 29, 2014 at 7:52

1 vote

2 answers

182 views

Understanding a lemma regarding subspace topology [duplicate]

general-topology

asked Sep 11, 2014 at 7:44

1 vote

1 answer

73 views

Transformation Matrix Problem

linear-algebra

asked Feb 20, 2014 at 4:55

1 vote

1 answer

206 views

Interchanging Derivatives and Limits with limits as a dependent variable of the partial deriviative.

statistics derivatives partial-derivative

asked Jan 24, 2017 at 4:41

1 vote

1 answer

328 views

Joint CDF of ordered statistic

probability statistics order-statistics

asked Mar 31, 2017 at 3:05

1 vote

1 answer

2k views

Casella and Berger, Standard Normal Hierarchical Conditional Distribution

central-limit-theorem

asked Apr 5, 2017 at 0:38

1 vote

1 answer

545 views

Strong Law of Numbers for $S_{n}$ Bounded Casella Berger 5.38

statistics moment-generating-functions law-of-large-numbers

asked Apr 15, 2017 at 3:31

1 vote

1 answer

44 views

What is the probability the first $n$ rolls of a die sum to 6?

combinatorics

asked Aug 18, 2020 at 19:42

1 vote

1 answer

67 views

Conceptual difference between multinomial coefficient and Bose-Einstein coefficient: counting the successes of a 6-sided die thrown n times?

combinatorics dice multinomial-coefficients

asked Aug 21, 2020 at 17:06

1 vote

1 answer

184 views

what is the probability that the first box is empty?

combinatorics

asked Sep 19, 2020 at 6:09

1 vote

0 answers

27 views

Binary game that shows either 1 or 2, and counting the sequencing of 122 that occurs in 5 plays

combinatorics

asked Sep 28, 2020 at 18:11

1 vote

1 answer

197 views

Finding the variance of MLE and comparing to MOM from a gamma distribution.

asymptotics variance estimator

asked Apr 28, 2021 at 1:05

1 vote

1 answer

26 views

Conditional distribution of an exponential observation given all are longer than expected time

conditional-probability exponential-distribution

asked May 20, 2021 at 23:05

1 vote

1 answer

51 views

Questions on Subbases For arbitrary product topologies

general-topology

asked Oct 7, 2014 at 4:04

0 votes

1 answer

60 views

number of ways to write a sum of $3$ numbers that sum to $10$, such that none can be empty? $ \geqslant 1$

combinatorics

asked Sep 19, 2020 at 6:24

0 votes

0 answers

69 views

four players named A, B C and D and dealt 13 card hands, count possibilities for everyone.

combinatorics permutations combinations

asked Aug 19, 2020 at 4:54

0 votes

1 answer

866 views

Forming a palindrome with random 7 letter word [closed]

combinatorics

asked Aug 21, 2020 at 1:53

0 votes

1 answer

107 views

seating on an airplane variant problem

combinatorics

asked Sep 7, 2018 at 7:30

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45 Questions

The real line, and finite complement topology is not a hausdorff

The Height of a polynomial

Cramer-Rao Casella Berger 7.38 for exponential family

There are n balls in a jar labeled with numbers 1,2,...,n. A total of k balls are drawn WITH REPLACEMENT.

Find the PDF of G(X,Y)=$(X,\frac{9}{(X+Y)^{2}})$ Transformation given the pdf of $f_{XY}(x,y)$

proof limit of $\frac{1}{(x^{2}-1)}$ = -1 using $\epsilon - \delta$ as $x_{0} \to 0$

open sets in the order topological space

Show $2<p^{2}<3$ is not compact

Separation and Hausdorff

Separated Spaces and a Partition Differences?

Bounded interval such that finite sub collections are nonempty, but entire intersections are empty

example of non compact set for rationals

when does $\limsup(a_n + b_n) < \limsup(a_n) + \limsup(b_n)$ holds?

Understanding a lemma regarding subspace topology [duplicate]

Transformation Matrix Problem

Interchanging Derivatives and Limits with limits as a dependent variable of the partial deriviative.

Joint CDF of ordered statistic

Casella and Berger, Standard Normal Hierarchical Conditional Distribution

Strong Law of Numbers for $S_{n}$ Bounded Casella Berger 5.38

What is the probability the first $n$ rolls of a die sum to 6?

Conceptual difference between multinomial coefficient and Bose-Einstein coefficient: counting the successes of a 6-sided die thrown n times?

what is the probability that the first box is empty?

Binary game that shows either 1 or 2, and counting the sequencing of 122 that occurs in 5 plays

Finding the variance of MLE and comparing to MOM from a gamma distribution.

Conditional distribution of an exponential observation given all are longer than expected time

Questions on Subbases For arbitrary product topologies

number of ways to write a sum of $3$ numbers that sum to $10$, such that none can be empty? $ \geqslant 1$

four players named A, B C and D and dealt 13 card hands, count possibilities for everyone.

Forming a palindrome with random 7 letter word [closed]

seating on an airplane variant problem