Exponential distribution Poisson distribution

We will now mathematically define the exponential distribution, and derive its mean and expected ...

The mean of the Exponential(λ) distribution is ... From the first and second moments we can compu...

在機率論和統計學中，指數分布（英語：Exponential distribution）是一種連續機率分布。指數分布可以用來表示獨立隨機事件發生的時間間隔，比如旅客進入機場的時間 ...

Expected value

Values for an exponential random variable occur in the following way. ... The time is known to ha...