Surveillance camera, exponential → binomial · 模块 D · 频次 4
P(T<t)=1−e−t/ extmeanX∼ extBin(n,p), P(X≥k)=1−F(k−1)P(T<t)=1-e^{-t/\ ext{mean}}\qquad X\sim\ ext{Bin}(n,p),\ P(X\ge k)=1-F(k-1)P(T<t)=1−e−t/ extmeanX∼ extBin(n,p), P(X≥k)=1−F(k−1)
1 - np.exp(-25/50)
1 - stats.binom.cdf(7, 16, 0.275)