In a class of 20 students, all but 4 of the students put their names on a typed assignment. If the teacher randomly guesses, what is the pro

Question

In a class of 20 students, all but 4 of the students put their names on a typed assignment. If the teacher randomly guesses, what is the probability that she correctly guesses which paper belongs to each of the four remaining students

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Dâu 3 years 2021-07-28T14:21:12+00:00 1 Answers 28 views 0

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  1. Nho
    0
    2021-07-28T14:22:29+00:00
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    Answer:

    4.17%

    (1/4)(1/3)(1/2)(1)

    alternative you can say that there are 24 permutations of

    4 items and that you have to guess 1 of them 1/24 = 4.17%

    Step-by-step explanation:

    0.25  

    0.333333333  

    0.5  

    1  

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