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OpenStudy (anonymous):
A pair of coins is tossed. What is the probability of no tails? 0 1/2 1/
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OpenStudy (anonymous):
half
OpenStudy (smarty):
1/2 because, there are only 2 sides to a quarter... so its one or the other.
OpenStudy (anonymous):
what about this one A class has 20 students. If the teacher is randomly putting students in groups of 3 to complete a project, what is the probability that three students who are best friends will be together? 1/20 3/20 1/1,140
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