It’s estimated because they don’t know exactly how many tickets will be sold leading up to the next drawing. I’ve not tracked it, but the times I’ve seen, were under 1-2 percentage points. If it bothers you that they said “estimated $55M” and instead you win $54,333,187.42, is it really that bad?
If you don't know the answer, underestimate and overdeliver. Or consider whether you should be doing it in the first place.
We are talking about a state government backed lottery, not a business.
> If you don't know the answer, underestimate and overdeliver.
Make up your mind, is estimating bad or not? The example I gave isn’t the only possible outcome, some times it’s 1-2% more than quoted when more tickets were sold.
And even then, it's perfectly consistent to say that estimating is only OK if it doesn't make you look better than reality.