Through a probability problem, a connection is showed between binomial distribution and negative binomial distribution and therefore a composed formula is set up, which is proved by way of probability and algebra.
英
美
- 摘要通過(guò)一個(gè)概率問(wèn)題，給出二項分布與負二項分布的一種聯(lián)系，從而建立一個(gè)組合公式，并由概率思維方式與代數方式給出證明。
