NO.PZ2020011901000031
问题如下:
Using Table 2.1, what is the probability that a woman aged 70 will live to age 90:
选项:
A.0.29650
0.35801
0.31166
It is impossible to tell from the information in the table.
解释:
B.
It is
(Probability of Survival from Birth Until Age 90)/(Probability of Survival from Birth Until Age 70)
=0.29650/0.82818
= 0.35801
为什么活到90的概率/活到70的概率=70活到90的概率