See all my videos at http://www.zstatistics.com/videos0:00 Intro0:43 Terminology definedDISCRETE VARIABLE:2:24 Probability Mass Function ... ... <看更多>

Content CDF - 累积分布函数PDF - 概率密度函数PMF - 概率质量函数CDF 与PDF 的关系CDF - 累积分布函数（Cumulative distribution ） 定义：随机变量X ... ... <看更多>

PMFs are associated with discrete random variables, PDFs with continuous random variables. For any type of random of random variable, the CDF ... ... <看更多>

已知联合PMF，欲得个别PMF; 边际PMF (Marginal PMF); 边际PDF (Marginal PDF) ... 若考虑两个随机变数𝑿, 𝒀 的联合机率分布， 我们也可定义出所谓的联合CDF:. ... <看更多>

Try this for PMF ... For CDF, you can try a similar one ... PDF plot(x,sapply(x,p),ylab="PDF") ### CDF plot(x,cumsum(sapply(x,p)),ylab="CDF"). ... <看更多>

A CDF is similar to a PMF in the sense that it contains values and their ... It's a way of getting from a PMF, a probability mass function, to a PDF, ... ... <看更多>