Return to the credit card scenario of Exercise 12 (Section 2.2), where A {Visa}, B {MasterCard}, P(A) .5, P(B) .4, and P(A B) .25. Calculate and interpret each of the following probabilities (a Venn diagram might help). a. P(BA) b. P(B A) c. P(AB) d. P(A B) e. Given that the selected individual has at least one card, what is the probability that he or she has a Visa card?

Lecture 1 Nicole Rubenstein August 28, 2017 1 Overview & Introduction Probability Concepts (STAT 3375): ▯ Chapter 2: Basic Probability ▯ Chapter 3: Discrete Probability Distributions ▯ Chapter 4: Continuous Probability Distributions ▯ Chapter 5: Multivariate Probability Distributions ▯ Chapter 6: Transformations of Random Variables Inferential Statistics (STAT 3445): ▯ Chapter 7: Central Limit Theorem ▯ Chapter 8: Estimation ▯ Chapter 9: Evaluating Estimators ▯ Chapter 10: Hypothesis Testing 2 Class Notes From Textbook 2.1-2.2 Objective of Statistics:ke an inference about a population based on information contained in a sample from that population and to provi