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Statistics 1 MEI OCR Textbook Ex6B Q3

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Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
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    In a particular area 30% of men and 20% of women are overweight and there are four men and 3 women working in an office there. Find the probability that there are
    i) 0
    ii) 1
    iii)2 overweight men
    vi)2 overweight women
    Assuming that these are taken randomly from the population.

    I understand the concept of Binomial Distribution however I still don't understand what this question is asking given there is no limit on population.

    Please help
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