Confidence Interval of Difference of Means
Making inferences based on sample data. Confidence intervals. Margin of error. Hypothesis testing.
Difference of Sample Means Distribution
Hypothesis Test for Difference of Means
Comparing Population Proportions 2
Clarification of Confidence Interval of Difference of Means
Variance of Differences of Random Variables
Hypothesis Test Comparing Population Proportions
More on the Central Limit Theorem and the Sampling Distribution of the Sample Mean
Pearson's Chi Square Test (Goodness of Fit)
Chi-Square Distribution Introduction
Confidence Interval Example
Using the Empirical Rule with a standard normal distribution
Using the empirical rule (or 68-95-99. 7 rule) to estimate probabilities for normal distributions
Saving Earth from becoming a mushroom farm.
Random logic puzzles and brain teasers. Fun to do and useful for many job interviews!
Extending the path counting to three dimensions
How to get correct advice when you can only ask one question from either a liar or a truth-teller (when you don't know who is what)
Turning light bulbs on and off.
Introduction to the central limit theorem and the sampling distribution of the mean
The central limit theorem and the sampling distribution of the sample mean
Z-score practice