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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
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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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Mathematics
3 years
2021-07-28T14:21:12+00:00
2021-07-28T14:21:12+00:00 1 Answers
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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