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    Mr. X invites 15 relatives to a party: his mother, three uncles, two aunts, four brothers, and five cousins. If the chances of any one guest arriving first are equally likely, find the following probabilities:

    a. the first guest is an uncle or a cousin
    b. the first guest is a brother or a cousin
    c. the first guest is an uncle or her mother

    © BrainMass Inc. brainmass.com December 24, 2021, 4:44 pm ad1c9bdddf
    https://brainmass.com/math/probability/calculating-probability-situation-4306

    SOLUTION This solution is FREE courtesy of BrainMass!

    Total No# of Relatives = 15

    a) No of Uncles = 3
    No of Cousins = 5

    Probability = Number of success events / Total Number of events
    = (3+5)/15
    = 8/15

    b) No of Brothers = 4
    No of cousins = 5

    Probability = 9/15 ( same logic as above)

    c) No of Uncles = 3

    Probability = (3+1)/15 ( +1 FOR MOTHER)
    = 4/15.

    Hope it is clear.

    Once again: Probability = No of success events/ Total No of events

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com December 24, 2021, 4:44 pm ad1c9bdddf>
    https://brainmass.com/math/probability/calculating-probability-situation-4306

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