R语言统计入门第三章概率和分布——

3.1随机抽样 sample(1:40,5)#从1到40中随机取5个数，默认为无放回抽样 [1] 19 3 20 35 13 sample(c("H","t"),10,replace=T)#模拟10次投掷硬币，replace=T有放回抽样参数 [1] “H” “H” “t” “t” “t” “H” “t” “H” “t” “t” 3.2概率论计算和排列组合 sample(c("succ","fai

>>阅读原文<<