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10 September, 15:37

The mathematics faculty at a college consists of 4 professors, 5 associate professors, 6 assistant professors, and 8 instructors. If one faculty member is randomly selected, find the probability of choosing a professor or an instructor.

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  1. 10 September, 16:52
    0
    First you add everyone together.

    8+6+5+4=23

    since there are 5 associate professors and 8 instructors you add them together.

    4+8=12

    you divide the number of professors and instructors by the number of everyone.

    12/23=.52

    you move the decimal over 1 place and there's your answer.

    52%
  2. 10 September, 19:20
    0
    There are a total of 4+5+6+8 = 23 faculty members.

    the probability of selecting a professor (4) or an instructor (8) is:

    (4+8) / 23 = > 12/23 = > 0.54 or 54%
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