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有个数学问题， 看谁能做出来？

KingOfTheWorld 2009-09-20 08:17:21 ( reads)

A colony starts with ONE bacteria. Each minute, either a bacteria dies with probability p, or splits one more into TWO.

What is expected life of the colony?

跟帖(8)

^V^

2009-09-20 14:45:45

Search this forum, you will find the answer.

Kingoftheworld

2009-09-20 16:25:05

回复：Search this forum, you will find the answer.

Mushy

2009-09-20 20:29:56

Discussion welcome, no answer included

kingoftheworld

2009-09-20 20:48:11

Not this simple. Someone says it needs Martingale

Mushy

2009-09-21 02:31:28

agreed, after wiki i found this:

innercool

2009-09-27 12:35:55

No, it is simple if you care only about the prob. of extinction

wyk

2009-10-19 18:21:36

回复：No, it is simple if you care only about the prob. of extincti

bookreader

2009-09-24 20:43:29

回复：有个数学问题， 看谁能做出来？