Normal distribution - stattrek., Normal distribution: family of probability distributions defined by normal equation. how to find probability of normal random variable. problems with solutions.. Normal distribution - maths resources, You can see a normal distribution being created by random chance! it is called the quincunx and it is an amazing machine. have a play with it!. Normal distribution & -scores - youtube, This video shows how to calculate "inside areas" and "areas in the extreme" in a normal distribution using z-scores. this video can also be found on my.