 
* Biostat q discussion 2 
 #860882 




Happy new year everyone
Q N =183 cancer patient survivors
1 year  90% 2 year  75% 3 years  50 % 4 years 40%
If the patient survives 2yrs what is the chance of surviving for 3 yrs ?
thanks


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* Re:Biostat q discussion 2 
#3386483 


If a patient survives for 2 years, what is the chance of surviving for 3 years?
this q is from kaplan step 3 biostat 2018 . I copy pasted it . I think it means surviving to the 3rd year .
It does not have a given choice . 

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* Re:Biostat q discussion 2 
#3386504 


surviving to the 3rd year if he survives 2 years is 50%. If the question was about surviving multiple years, then it is calculated based on independent probability 

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