The Quincunx is an apparatus invented by Sir Francis Galton for use in his study of the binomial and normal distributions (about 1865).
The apparatus consists of a number of pins arranged in the form of Pascal's triangle. Balls are dropped on the top pin and as a ball hits a pin on the way down it goes left or right with probability 0.5. A ball eventually ends up in one of the bins at the bottom and the number of balls in each bin is counted. It is seen that the process results in a binomial distribution of the balls.
There are 10 rows and 600 balls in this version of the Quincunx.
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| 熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
|---|---|---|---|---|---|---|
| 台灣 Taiwan | Windows Windows 市集 | 1.0.0.0 App下載 | 免費 | 2013-01-16 | 2014-09-22 | |
| 美國 (U.S.A) | Windows Windows 市集 | 1.0.0.0 App下載 | 免費 | 2013-01-16 | 2014-09-26 |
