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What's on the worksheet
- Find the probability of the complement in the same form.P(A) = 0.3P(\text{not } B) = 0.72P(C) = \dfrac{2}{9}P(D) = 45\%P(\text{not } E) = 0.06
- Say in words what the complement event means and use it.
- Word problem: the chance a jump rope is frayed or not.
- Word problem: events about the pins Diego knocks down.
- Word problem: events about numbered calculators handed out at random.
- Word problem: Amara's arrow landing in rings of a target.
- Word problem: the chance Hiro and Jin pick the same shelter day.
Teach it first
The free lesson teaches it with worked examples and practice problems.
Complements and probabilities that add to one: the lesson ›More Chapter 11 worksheets: Probability
- 11.1What randomness means
- 11.2Chance in words and the 0 to 1 scale
- 11.3Sample spaces, outcomes and events
- 11.4Listing a sample space: lists and tables
- 11.5Probability of an event
- 11.6Complements and probabilities that add to one
- 11.7Probability models: equally likely or not
- 11.8Experimental probability and relative frequency
- 11.9Geometric probability