A survey indicates that 20% of parents use spanking as a discipline strategy. Among those parents who spank, 70% believe a kid should always obey the parent. Among those parent who do not spank, 10% believe a kid should always obey the parent. Which of the following gives the probability that a randomly selected parent believe that a kid should always obey the parent? a) (0.2)(0.7) + (1-0.2)(0.1) b) (0.2)(0.7) + (0.2)(0.2) c) 0.7 + 0.1 d) 0.2 + 0.7
A survey indicates that 20% of parents use spanking as a discipline strategy. Among those parents who spank, 70% believe a kid should always obey the parent. Among those parent who do not spank, 10% believe a kid should always obey the parent. Which of the following gives the probability that a randomly selected parent believe that a kid should always obey the parent? a) (0.2)(0.7) + (1-0.2)(0.1) b) (0.2)(0.7) + (0.2)(0.2) c) 0.7 + 0.1 d) 0.2 + 0.7
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Question
A survey indicates that 20% of parents use spanking as a discipline strategy.
Among those parents who spank, 70% believe a kid should always obey the parent.
Among those parent who do not spank, 10% believe a kid should always obey the parent.
Which of the following gives the probability that a randomly selected parent believe that a kid should always obey the parent?
a) (0.2)(0.7) + (1-0.2)(0.1)
b) (0.2)(0.7) + (0.2)(0.2)
c) 0.7 + 0.1
d) 0.2 + 0.7
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