1. When tossing a fair six sided die, what is the mean value of the random variable, X, the number observed?
2. What is the mean value of a Bernoulli random variable? What is the mean value for the number of successes observed in a sequence of n Bernoulli trials?
3. What is the mean value of a geometric random variable? What is the mean value of N, the number of tosses of a fair coin until the fourth head occurs?