SOCSCI 2J03 Lecture 9: Chapter 4 Continued

• School: McMaster University
• Department: Social Sciences
• Course: SOCSCI 2J03
• Professor: Rizwan Tahir

Document Summary

Socsci2j03 lecture 9 chapter 4 (continued) 4. 5 union of events and the addition rule: union of events. The probability of outcomes to intersect and belong to the same grouping. This number offers the union of events between female and regular coffee : addition rule. Used to find the probability of union of two mutually exclusive/non-exclusive events. Non-exclusive formula: p(a or b) = p(a) + p(b) p(a and b) Exclusive formula: p(a or b) = p(a) + p(b: example. Finding the probability of faculty members/students whom report to be in favor or neutral towards the matter. Calculating the probability of the variables a and b. 4. 6 counting rule, factorials, combinations, permutations: counting rule. Dependent upon the experiment what the variables are/total outcomes there may be. Includes 3 steps: m outcomes, n outcomes, k outcomes. Tossing a coin three times finding total outcomes of this experiment. Three steps = three tosses of a coin.