Then you get into the field of survival analysis, where you get methods that can handle this problem (called right censoring IIRC). https://en.m.wikipedia.org/

Then you get into the field of survival analysis, where you get methods that can handle this problem (called right censoring IIRC). https://en.m.wikipedia.org/wiki/Kaplan%E2%80%93Meier_estimator https://en.m.wikipedia.org/wiki/Kaplan%E2%80%93Meier_estimat...