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John has 3 unique coins such that the probability of obtaining a head when the coin is flipped is 110, 210 and 310, respectively. If he flips each of the 3 coins once, the probability that at least 1 heads appears is p. What is the value of 1000p?

  • mathematics -

    the probability of any event is a number p such that
    0 ≤ p ≤ 1
    Your data makes no sense.

  • mathematics -

    she meant
    1/10 and 2/10 3/10

  • mathematics -

    answer ?

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