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Math Help - Six Degrees of Seperation

  1. #1
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    Six Degrees of Seperation

    Using Six degrees of Separation
    Figure 6.9 billion,
    A) How many messages are passed through before all 6.9 billion people are informed?

    B) How many were informed during the last round i.e. the round that included the 6.9th bil person.

    C) What are the chances a person will receive the info twice before the 6.9th bil person receive it?

    D) And the 6.9 Billionth person, not knowing he/she is the last person, continues to pass the message, still under Six degrees of Separation…How many message passes will be needed (minimum possible) before the original 117, 694 millionth person gets to hear it the second time?

    For D) Taking that the message passes are at random with NO planned point of contact, i.e. ‘coincidence’ in the real world.

    Please advise

    Thank you


    Last edited by MathBooBoo; February 9th 2011 at 03:58 AM. Reason: Paragraphing
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by MathBooBoo View Post
    Using Six degrees of Separation
    Figure 6.9 billion,
    A) How many messages are passed through before all 6.9 billion people are informed?

    B) How many were informed during the last round i.e. the round that included the 6.9th bil person.

    C) What are the chances a person will receive the info twice before the 6.9th bil person receive it?

    D) And the 6.9 Billionth person, not knowing he/she is the last person, continues to pass the message, still under Six degrees of Separation…How many message passes will be needed (minimum possible) before the original 117, 694 millionth person gets to hear it the second time?

    For D) Taking that the message passes are at random with NO planned point of contact, i.e. ‘coincidence’ in the real world.

    Please advise

    Thank you

    What is the context for this question? For instance, what type of course is it associated with or how did you find it?

    CB
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  3. #3
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    Hi CB,

    I just thought about it, hence the question.
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by MathBooBoo View Post
    Hi CB,

    I just thought about it, hence the question.
    Then it is an ill posed question:

    A) could probably be addressed by the discerete logistic equation.

    The others will take some thought, possibly using stochastic processes.


    CB
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