Hey, I'm Hongjinn
I'm a business analyst that enjoys learning math and programming. This is my spot on the web to host notes I've taken and random personal musings.
December 23, 2020 - When does the Binomial become approximately Normal
October 28, 2020 - Gambler's ruin problem
September 6, 2020 - The t-distribution becomes Normal as n increases
September 1, 2020 - Marcus Aurelius on death
January 24, 2020 - Proof of the Central Limit Theorem
January 7, 2020 - Proof of the Strong Law of Large Numbers
November 3, 2019 - Deriving Multiple Linear Regression
October 4, 2019 - Safety stock formula derivation
September 27, 2019 - Derivation of the Normal Distribution
September 24, 2019 - Comparing means of Normal populations
July 24, 2019 - Concentrate like a Roman
July 3, 2019 - How to read a Regression summary in R
May 6, 2019 - Notes on Expected Value
April 4, 2019 - How to read an ANOVA summary in R
February 25, 2019 - The time I lost faith in Expected Value
February 21, 2019 - Notes on Weighted Linear Regression
January 13, 2019 - How information can update Conditional Probability
January 7, 2019 - Coupon collecting singeltons with equal probability
January 6, 2019 - Coupon collecting with n pulls and different probabilities
January 5, 2019 - Coupon collecting with different probabilities
January 4, 2019 - Coupon collecting with equal probability
January 3, 2019 - Adding Independent Normals Is Normal
December 4, 2018 - The value of fame during and after life
November 18, 2018 - Notes on the Beta Distribution
November 8, 2018 - Notes on the Gamma distribution
August 25, 2018 - Notes on Conditioning
June 28, 2018 - Notes on Independence
June 25, 2018 - A part of society
June 19, 2018 - Conditional Expectation and Prediction
April 23, 2018 - Notes on Covariance
October 8, 2017 - Deriving Simple Linear Regression
September 9, 2017 - Nature of the body
March 15, 2017 - Set Theory Basics
March 4, 2017 - Polynomial Regression
October 6, 2016 - The Negative Hyper Geometric RV
September 13, 2016 - Notes on the MVN
August 28, 2016 - Deriving the Cauchy density function
July 7, 2016 - Exponential and Geometric relationship
June 24, 2016 - Joint Distribution of Functions of RVs
May 13, 2016 - Order Statistics
April 19, 2016 - The Sample Mean and Sample Variance
March 24, 2016 - Probability that one RV is greater than another
February 4, 2016 - St Petersburg Paradox
January 13, 2016 - Drunk guy by a cliff
March 22, 2015 - The things that happen to us
Natural History Museum of Los Angeles