Question

We select at a subject who had mammogram.find the probability that she is divorced or separated?

Answer 1

$$\def\arraystretch{1.5} \begin{array}{c:c:c:c} Marital & Hispanic & Non- & Total \\ Status & & Hispanic & \\ \hline Currently & 319 & 738 & 1057\\ Married & & & \\ \hdashline Divorced\ or & 130 & 329 & 459\\ Separated & & & \\ \hdashline Widowed & 88 & 402 & 490\\ & & & \\ \hdashline Never\ Married & & & \\ or\ Living\ As & 41 & 95 & 136 \\ an\ Unmarried\ Couple & & & \\ \hdashline Total & 578 & 1564 & 2142\\ \hline \end{array}$$

$$P(Divorced\ or\ Separated)=\dfrac{459}{2142}$$

$$=\dfrac{3}{14}\approx0.2143$$