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If a single letter is drawn from the set{m, a, t, h, e, i, c, s},what is the probability that the letter drawn is a member of the set {m,a,t,h}?

  • Math -

    Cardinality (number of members) of the set
    A : {m, a, t, h, e, i, c, s} = 8
    Cardinality of the set B : {m,a,t,h} = 4
    So the probability of drawing a single letter from A that is a member of B equals ?

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