methree comments on A decision tree for vaccinating children against Covid-19, or how to wisely make a monumental decision

[methree]

It is great for holding discussions when there are more people involved in a decision.

As for the calculation, can you help me spot the mistake? I can’t find it!

$(0.000004\ast 619.994)+(0.999996\ast 600)=.002479976+599.976=599.98$

[Thomas Sepulchre]

You have to replace the right term $599.976$ by $599.9976$. This makes the sum equal to $600.000079976$, or $600.00$ if you keep only two digits after the decimal point. Still pretty close to 600 though :)

[methree]

Thanks! I’ve updated the calculation and diagram.