1. The random variable $X\textasciitilde{}B(40,0.25).$Find:

(i) the largest value of $k$ such that  \text{P}(X</p><p style="line-height: 1.7" class="text-lg tracking-wide font-normal leading-relaxed">(ii) the smallest value of \(r such that  $P(X\geqr)<0.05$

(iii) the largest value of $s$ such that  $P(X>s)>0.95.$