Text and Images Learning Objectives:
Learning object 1 : - Learners will learn how to organize and summarize data
- Apply various types of sampling methods to data collections
- Create and interpret frequency tables
Learning object 2: - Learners will use the terminology of probability
- Determine whether two events are mutually exclusive and whether two- events are independent
- Calculate probabilities using the Addition Rules and Multiplication Rules
Addition Rule Formula
When calculating the probability of either one of two events from occurring, it is as simple as adding the probability of each event and then subtracting the probability of both of the events occurring:
P(A or B) = P(A) + P(B) - P(A and B)
We must subtract P(A and B) to avoid double counting!
Special Case: Mutually Exclusive Events
If the 2 events are mutually exclusive (or sometimes called disjoint), that is if they can't BOTH happen!
If they both cannot happen, P(A and B) is 0. Therefore,
P(A or B) = P(A) + P(B)
Learning object 3: - Learners will construct and interpret Contingency Tables
- Learners will construct and interpret Venn Diagrams
- Learners will construct and interpret Tree Diagrams.
