In this video, Salman Khan of Khan Academy explains standard deviation.
Khan Academy

In this video, Salman Khan of Khan Academy explains sample variance.
Khan Academy

In this video, Salman Khan of Khan Academy explains variance of a population.
Khan Academy

Interest compounded yearly, monthly, daily, etc.
About.com: Mathematics


In this video, Salman Khan of Khan Academy explains binomial distribution. Part 2 of 4.
Khan Academy

In this video, Salman Khan of Khan Academy explains binomial distribution. Part 1 of 4.
Khan Academy

In this video, Salman Khan of Khan Academy explains alternate variance formulas.
Khan Academy

In this video, Salman Khan of Khan Academy explains sample and population means.
Khan Academy

In this video, Salman Khan of Khan Academy explains averages.
Khan Academy
