What is the cumulative probability of surviving to the end of the 4-year follow-up period? Use the following table to answer the question. Survival of Patients With Metastatic Cancer Z Following Diagnosis
\(\begin{array}{l|l|l|l|l|l|l|l}
\begin{array}{l}
\text { Interval } \
\text { since } \
\text { beginning } \
\text { treatment } \
\text { (months) }
\end{array} & \begin{array}{l}
\text { Alive at } \
\text { beginning } \
\text { interval }
\end{array} & \begin{array}{l}
\text { Died } \
\text { during } \
\text { interva } \
1
\end{array} & \begin{array}{l}
\text { Withdre } \
\text { interval }
\end{array} & \begin{array}{l}
\text { Effective } \
\text { number } \
\text { exposed } \
\text { to risk of } \
\text { dying }
\end{array} & \begin{array}{l}
\text { Proporti } \
\text { on who } \
\text { died } \
\text { during } \
\text { interval }
\end{array} & \begin{array}{l}
\text { Proportion } \
\text { who did not } \
\text { die during } \
\text { interval }
\end{array} & \begin{array}{l}
\text { Cumulative } \
\text { proportion } \
\text { who } \
\text { survived } \
\text { from } \
\text { enrollment } \
\text { to end of } \
\text { interval }
\end{array} \
\hline x & I_{x} & d_{x} & W_{x} & I_{x}^{\prime} & q_{x} & p_{x} & P_{x} \
\hline 1-12 & 200 & 10 & 40 & & & & \
\hline 13-24 & 150 & 20 & 30 & & & & \
\hline 25-36 & 100 & 30 & 20 & & & & \
\hline 37-48 & 50 & 40 & 10 & & & &
\end{array}\)

Question

Quizplus · Accepted Answer

The Answer is A

What Is the Cumulative Probability of Surviving to the End