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Mathematics, 19.07.2019 17:30 sadewright21404

There are 21 students in your class. the teacher wants to send 4 students to the library each day. the teacher will choose the students to go to the library at random each day for the first four days from the list of students who have not already gone. what is the probability you will be chosen to go the first day?


There are 21 students in your class. the teacher wants to send 4 students to the library each day. t

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