Bowling

Bowling is a game played by rolling a heavy ball down a long narrow track and attempting to knock down ten pins arranged in theform of a Triangle with its vertex oriented towards the bowler. The number 10 is, in fact, the Triangular Number.

Two ``bowls'' are allowed per ``frame.'' If all the pins are knocked down in the two bowls, the score for that frame is thenumber of pins knocked down. If some or none of the pins are knocked down on the first bowl, then all the pins knocked down onthe second, it is called a ``spare,'' and the number of points tallied is 10 plus the number of pins knocked down on the bowlof the next frame. If all of the pins are knocked down on the first bowl, the number of points tallied is 10 plus the numberof pins knocked down on the next two bowls. Ten frames are bowled, unless the last frame is a strike or spare, in which casean additional bowl is awarded.

The maximum number of points possible, corresponding to knocking down all 10 pins on every bowl, is 300.

References

Cooper, C. N. and Kennedy, R. E. ``A Generating Function for the Distribution of the Scores of All Possible Bowling Games.'' In The Lighter Side of Mathematics (Ed. R. K. Guy and R. E. Woodrow). Washington, DC: Math. Assoc. Amer., 1994.

Cooper, C. N. and Kennedy, R. E. ``Is the Mean Bowling Score Awful?'' In The Lighter Side of Mathematics (Ed. R. K. Guy and R. E. Woodrow). Washington, DC: Math. Assoc. Amer., 1994.

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