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Probabilities of Consecutive Events in Coin Flipping

Merkel, Benjamin E.

Abstract Details

2011, MS, University of Cincinnati, Arts and Sciences: Mathematical Sciences.

The motivation of my thesis came from a problem I heard on Radiolab, a podcast distributed through National Public Radio. In the podcast, the two hosts asked the question, “What is the probability of flipping seven consecutive tails when flipping a coin a hundred times?” They approximated the probability to being 1/6. From a mathematical point of view, this seems like too simple of an answer because there are 2^100 cases one must consider.

In my thesis, I first go about finding an exact probability to this initial question. Afterwards, I show how one can answer a generalized version of this question, where the number of flips and the number of consecutive events are variable. Additionally, I show how to find the probability of consecutive heads or tails occuring.

By answering these questions, I learned calculation techniques using matrix multiplication. These methods are shared in the paper. Lastly, I go into some of the underlying mathematics in this matrix multiplication and how it relates to their related recursive sequences.

Stephan Pelikan, PhD (Committee Chair)
Donald French, PhD (Committee Member)
Joanna Mitro, PhD (Committee Member)
21 p.

Recommended Citations

Citations

  • Merkel, B. E. (2011). Probabilities of Consecutive Events in Coin Flipping [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307442290

    APA Style (7th edition)

  • Merkel, Benjamin. Probabilities of Consecutive Events in Coin Flipping. 2011. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307442290.

    MLA Style (8th edition)

  • Merkel, Benjamin. "Probabilities of Consecutive Events in Coin Flipping." Master's thesis, University of Cincinnati, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307442290

    Chicago Manual of Style (17th edition)