STA220H5 Lecture Notes - Lecture 5: Quartile, Minitab
Document Summary
If e is a sample point: 0 # p(e) #1, ep(e) = 1, the union of two events is an event that occurs if a or b or both occur. The union consists of all the sample points that are in a or in b or in both. It is denoted by a c b: the intersection of two events a and b is an event that occurs if both a and b occur. It consists of the set of sample points that belong to both a and b. If the events a and b are independent then: p(a | b) = p(a, p(a 1 b) = p(a) p(b) If n elements are selected from a population so that every set of n elements has an equal chance of being selected then the n elements are said to be a random sample. Methods for doing probability: list all sample points with their probabilities.
