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March 28, 2017

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There are 3 lucky tickets among 10 lottery tickets. 3 tickets are
drawn at random. What is a probability that one ticket selected randomly
from those three is lucky?

  • PROBABILITY - ,

    For exactly one lucky ticket in three draws without replacement:

    3/10 * 7/9 * 6/8 = ?

  • PROBABILITY - ,

    Do we need to use A or C (combainations)

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