Posts

A coin toss problem
Toss a fair coin 10000 times, what’s the probability of observing heads showing up exactly 5000 times?
Last updated on Dec 30, 2021 2 min read
A note on mean inequalities
Based on Kolmogorov general definition of mean and some well known mean inequalities, we are able to derive a number of new inequalities.
Last updated on Dec 29, 2021 3 min read
On how many bins to choose for a histogram
It is about how many bins to choose when making a histogram.
Last updated on Jan 5, 2022 1 min read