大家伙 2022-04-13
就能得出至少有40人选择施利茨的概率为(0.5)^40×(0.5)^60×c(100,40)+(0.5)^41×(0.5)^59×c(100,41)+……+(0.5)^100,化简计算式子为(0.5)^100×(c(100,40)+……c(100,100))<br>由于计算量过大,需要借助计算器,用r语言计算,代码为<br>i=seq(40,100,1)<br>n=seq(1,61,1)<br>(0.5)^100*sum(choose(100,i[n]))<br>计算结果为0.9823<br>另一个就不验算了