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  1. #1
    5 Star Lounger Ruff_Hi's Avatar
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    When is My Birthday

    It is my birthday sometime this year. It is also your birthday sometime this year.

    Q1 What is the probability that my birthday this year falls on a Sunday?
    Q2 What is the probability that your birthday this year falls on a Sunday?
    Q3 What is the probability that hypothetical person A's birthday this year falls on a Sunday?
    (Location Australia, then UK, but now USA. Heart, outlook, attitude, etc always Australian)
    Quote: "All Happiness is the release of internal pressure"

  2. #2
    WS Lounge VIP sdckapr's Avatar
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    Re: When is My Birthday

    <span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>
    Q1. There is not enough info. i would need your birthday to answer this. It is either 0 or 100%
    Q2. 0% my birthday falls on a thursday this year so will not fall on a Sunday
    Q3. 52/366 = 14.2%</font color=yellow></span hi>

    Steve

  3. #3
    5 Star Lounger Ruff_Hi's Avatar
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    Re: When is My Birthday

    all correct!

    what about Q3 if I said a Friday?
    (Location Australia, then UK, but now USA. Heart, outlook, attitude, etc always Australian)
    Quote: "All Happiness is the release of internal pressure"

  4. #4
    Plutonium Lounger
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    Re: When is My Birthday

    According to my calendar <span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>there are 53 Fridays this year. So the chances are 53/366 = 14.48% </font color=yellow></span hi>

    StuartR

  5. #5
    WS Lounge VIP sdckapr's Avatar
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    Re: When is My Birthday

    Stuart already answered and to head off other questions:
    <span style="background-color: #FFFF00; color: #000000; font-weight: bold"><font color=yellow>Thurs and Friday for Q3 are the same 53/366. All others are 52/366.</font color=yellow></span hi>

    Steve

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