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20. Mr. Kelson has 5 students writing a credit recovery exam for semester one data management. He forgot to put a place for the students

20. Mr. Kelson has 5 students writing a credit recovery exam for semester one data management. He forgot to put a place for the students to write their names and all the tests were handed in before he noticed the error. He thinks he has a pretty good chance at guessing randomly! What is the probability he enters all the marks incorrectly?

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