If X∼Binomial(n=8,p=0.5)X \sim \text{Binomial}(n=8, p=0.5)X∼Binomial(n=8,p=0.5), what is the probability P(X≤1)P(X \leq 1)P(X≤1)?
9/256
1/256
1/64
1/32