Section 8.2 Class Notes

# Section 8.2 Class Notes - Section 8.2 Outcomes with Unequal...

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Section 8.2 Outcomes with Unequal Probability; Odds General Rules for Probability If a sample space, S, has a finite number of outcomes then: 1) The probability of each outcome is between 0 and 1 inclusive 2) The sum of the probabilities of all outcomes = 1 3) The probability of the empty set = 0 The probability of a particular event in S is found by adding the probabilities of all outcomes making up that event. Example: #10 Spinners The arrow on the spinner in the given figure is spun, and the letter representing the area the arrow points to is then recorded. a) Find the sample space for this experiment, and assign probabilities to each outcome of the sample space. b) What is the probability that the arrow will point to the area labeled A or the area labeled D? c) What is the probability that the arrow will point to the area labeled B or the area labeled C? #14 Eight red, five green, seven blue, and ten purple balls are in a box One ball is to be randomly drawn from the box and the color recorded.

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Section 8.2 Class Notes - Section 8.2 Outcomes with Unequal...

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