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25 April, 17:34

the mathematics Department of a college has 11 male professors 12 female professors 9 male teaching assistants and 12 female teaching assistant if a person is selected at random from a group find the probability that the selection person is teaching assistant or a female

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  1. 25 April, 20:09
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    P (teaching assistant or a female) = 1 - P (professor and male) = 1 - 11/44 = 1 - 0.25 = 0.75

    Make a Contingency_table
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