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Mathematics, 25.07.2019 19:30 sydneydavis57

Mr. hogan's class has 20 students in it. on picture day, 6 students stand in the first row, 5 students stand in the second row, 4 students stand in the third row, and 5 students stand in the fourth row. if a random student blinks, what is the probability that the student will be in the second or third row?

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