ZHANG, Ruda August 07, 2020:  Correct math: use 1 with set subscript for characteristic function / indicator function of the set; use "[ x ]" instead of "[x]" to avoid GFM checkbox syntax. [1ac98ba]
ZHANG, Ruda April 18, 2020:  More on bootstrap methods. Inference vs. simulation. [6be0ffe]
ZHANG, Ruda March 11, 2020:  Edit bootstrap. [b9359a7]
ZHANG, Ruda February 24, 2019:  Replace superscript * to ∗ [d60bd7f]
ZHANG, Ruda December 30, 2018:  Use dollar style math markup. [1b7036c]
ZHANG, Ruda September 30, 2018:  CSS redesign; more edits. [dd44d96]
ZHANG, Ruda July 18, 2018:  More on MLE, MME [81a9c52]
ZHANG, Ruda July 15, 2018:  Add Probability Density Estimation. [7990ded]
ZHANG, Ruda July 14, 2018:  Modify bootstrap [b23d30f]
ZHANG, Ruda March 23, 2018:  Global remove trailing whitespaces [2b7ff90]
ZHANG, Ruda November 24, 2017:  more on Bootstrap [93eb55d]
ZHANG, Ruda November 24, 2017:  Define standard error of a statistic. [d7a028a]
ZHANG, Ruda November 24, 2017:  Reformat estimator of sample variance [0a2316d]
ZHANG, Ruda November 24, 2017:  Cluster-robust variance estimator [d087d43]
ZHANG, Ruda November 24, 2017:  More on bootstrapping with clustered data. [2579d61]
ZHANG, Ruda November 24, 2017:  Add bootstrap; correct math symbole of OLS notes. [a152414]