接上篇。。。了解了什么是随机变量,接下来我们开始看一下什么是概率分布。。 2 . 概率分布( probability distribution ) The probability distribution associated with the random variable X describes the likelihood of obtaining certain values or ra ...
The purpose of the field of statistics is to characterize a population based on the information contained in a sample taken from that population 。 上述论述中,包含的三个要素是 population 、 samples 和 characterization 。那么具体怎么 characterization 呢? ...