政府估計所有百歲老人都在2年內仙逝?
所有跟帖:
• MEDIAN SURVIVAL=50%人活著。所以政府預期百歲老人2年裏死去一半,還有一半活著 -anne8- ♀ (0 bytes) () 11/07/2023 postreply 20:28:30
• MEDIAN SURVIVAL=50%人活著。所以政府預期百歲老人2年裏死去一半,還有一半活著 -anne8- ♀ (0 bytes) () 11/07/2023 postreply 20:28:30
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