STAB22H3 Lecture Notes - Lecture 15: Random Variable, Probability Mass Function, Fair Coin

• School: UTSC
• Department: Statistics
• Course: STAB22H3
• Professor: Ken Butler

Document Summary

Denote by x the random variable equal to the number of heads in the. Denote by y another random variable equal to the ip number on which we get the rst head. Suppose the outcome of the experiment is t, t, t, h, t, h, . Then for this particular outcome x = 0 and y = 4: i call the possible values that a random variable can take, the support of the random variable, example. Experiment: ip a fair coin repeatedly and record face value of each. If x is the random variable equal to the number of heads in the rst two. Ips of the fair coin, then the support of x is {0, 1, 2} Experiment: repeatedly ip a fair coin and record the face value. Suppose x is the random variable equal to the number of heads in the. P (x = k) for k = 0, 1, 2 is the distribution of x.