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What's on the worksheet
- Decide whether two events are mutually exclusive and give an outcome in both if not.
- Check the events are mutually exclusive, then use the addition rule.
- Word problem: the length of a hotel stay chosen at random.
- Word problem: skis, snowboards or no rental at a ski hill's desk.
- Word problem: a bakery's model for the number of unsold rye loaves.
- Word problem: Isaac's bus being early, on time or late, and rain on separate mornings.
Teach it first
The free lesson teaches it with worked examples and practice problems.
Mutually exclusive events and the addition rule: the lesson ›More Chapter 12 worksheets: Probability
- 12.1Union and intersection of events
- 12.2Mutually exclusive events and the addition rule
- 12.3Joint and marginal probability
- 12.4The general addition rule
- 12.5Odds
- 12.6At least one problems
- 12.7Finding a conditional probability
- 12.8The general multiplication rule
- 12.9The law of total probability
- 12.10Bayes' rule
- 12.11Probability with counting formulas