m*******n
发帖数: 154 | 1 有些题的解法不是很确定。由于在准备一个公司的面试，对于下面这类题，看哪些书能
帮助准备。大家能不能给点解答的建议啊？多谢！
1. When cycling home at night, I notice that sometimes my rear light is
switched off when I arrive home. Presumably the switch is loose and can flip
from on to off or back again when I go over bumps. I suppose that the
number n of flippings per trip has a Poisson distribution e−\lambda \
lambda^n/n!. If the probability that the light is still on when I arrive
home is p, find \lambda.
2. Let X - N(0, 1) be a normally distributed |
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