Originally Posted by invisible

We can use Singapore example. Totally there are 150 cases.
https://www.moh.gov.sg/news-highligh...tion-confirmed

60 hospitalization, 9 critical. 15% of hospitalized are in critical condition. Or 6% from total 150 cases. That quite large figure, what do you think?

Now, let's look at the dashboard https://go.gov.sg/covid-19-dashboard
and also look at past releases https://www.moh.gov.sg/covid-19/past-updates from these releases you will see entries like following:



Now, if I had enough time, I could go and spend several hours to see one which days each of above cases were reported and calculate precise number of days they've stayed in hospital. And do the same for every single of 90 discharged case.

So question - how many cases do we need to have to calculate average discharge time with 95% of confidence? 100? 1000? 5000?