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25 May, 22:00

At a convention, there are 8 mathematics instructors, 13 computer science instructors, 4 statistics instructors, and 6 physics instructors. If an instructor is selected, fint the probability of getting a physics or a statistics instructor.

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  1. 25 May, 22:19
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    0.323

    Step-by-step explanation:

    Number of mathematics instructors=8

    Number of Computer Science instructors=13

    Number of Statistics instructors=4

    Number of Physics instructors=6

    Total Attendance = 8+13+4+6=31

    Probability of Getting a Physics Instructor=6/31

    Probability of Getting a Statistics Instructor=4/31

    Pr (Getting a Physics OR Statistics Instructor)

    =Probability of Getting a Physics Instructor+

    Probability of Getting a Statistics Instructor

    =6/31+4/31=10/31=0.323
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