P(X = k) = C(n,k)ยทp^kยท(1-p)^(n-k) and P(X โ‰ค k) for Binomial(n, p). Uses log-space for stability.

P(X = k) = 0.11718750000000003

P(X โ‰ค k) = 0.17187500000000003