Tire molding : (Works like a Belgian waffle iron.) In some plants tires are molded in pairs. We define our random variable X as the total number of defective tires in the pair. So, X takes the values 0, 1 or 2.
Mean and variance of a discrete random variable: Here's the Excel spreadsheet for calculating these quantities for the bicycle shop data.
Winning in 6/49 : The probability of winning in 6/49 lottery is veeeery small.
Three tennis balls : My success probability at each throw is p = 0.6. What is the probability that I will have all three balls in the bucket? Two balls? One ball? Zero?
Here is my handwritten notes on the binomial distribution. 
Application of binomial probabilities in the adoption of a new drug: This .pdf file explains the details of the analysis.
Informal course evaluations (Fall 2011).
