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2.1 - Probability Distributions (Solutions)

# 2.1 - Probability Distributions (Solutions) - 0.48 0.16 2.1...

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2.1 Probability Distributions 1 Section 2.1 Probability Distributions PROBABILITY DISTRIBUTIONS a variable whose value is determined by the outcome of a random experiment. a list of all possible values of a random variable & their associated probabilities RANDOM VARIABLE: PROBABILITY DISTRIBUTION: x 0 1 2 3 4 P(x) 0.08 0.21 0.35 0.23 0.13

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2.1 Probability Distributions 2 F 0.4 M 0.6 F P(F & F) = F P(M & F) = M P(F & M) = M P(M & M) = 1 st Customer 2 nd Customer 0.4 0.6 0.4 0.6 (0.4)(0.4) = 0.16 (0.4)(0.6) = 0.24 (0.6)(0.4) = 0.24 (0.6)(0.6) = 0.36 # of Females out of 2 picks 2 1 1 0 Scenario: Large population that is 40% female and 60% male PROBABILITY DISTRIBUTION Number of Female Customers out of Two x P(x) GRAPH OF PROBABILITY DISTRIBUTION 0 1 2 0.36