Problem:(adsbygoogle = window.adsbygoogle || []).push({});

Suppose that the probability that a head appears when a coin is tossed is p and the probability that a tail occurs is q=1-p. Person A tosses the coin until the first head appears and stops. Person B does likewise. The results obtained by persons A and B are assumed to be independent. What is the probability that A and B stop on exactly the same number toss?

I am not quite sure how to solve this. I'm assuming that the tosses are distributed as a negative binomial and I'm lost as to how to put everything together.Please help !

Thanks!

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Joint Coin Probability Problem

Loading...

Similar Threads - Joint Coin Probability | Date |
---|---|

I Coin toss with changing probability | Dec 17, 2016 |

I Joint distributions | Mar 25, 2016 |

A quick Question on Joint Uniform Distribution | Aug 19, 2015 |

Best visualization of joint/marginal distributions? | Aug 5, 2015 |

How do I calculate an area of joint uniform distribution with domain | Jul 22, 2015 |

**Physics Forums - The Fusion of Science and Community**