Math

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While cleaning her dorm room, Monica mistakenly pushed three coins off the desk. When they land on the chair below, find the odds
(a) in favor of getting exactly three heads
(b) in favor of getting exactly three tails
(c) against getting exactly two heads
(d) against getting exactly one tail
(e) in favor of getting at least one tail

  • Math -

    Assuming all three coins are fair, you could use a probability tree or a table to list all possible outcomes (Ω) and calculate the probabilities accordingly.
    H=head
    T=tail

    All 8 possible outcomes
    HHH
    HHT
    HTH
    HTT
    HHH
    THT
    TTH
    TTT

    You can use the table to answer the above questions.

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