On 2017-07-20 11:13:43 +0000, James Wilkinson Sword said:

What do you believe weather forecasters mean when they say "40% chance
of rain"?

1) It will rain for 40% of the day.
2) There's a 40% chance it will rain at some point.

I googled it and apparently it depends on the forecaster? 1) and 2)
are completely different meanings.

It means there is a 40% chance that it will rain in the area to which
the forecast applies and during the period (often a day) specified.

It never means (1) and does not depend on the forecaster and is not a
matter of belief. Nor, happily, does it depend on google.

--
Asha
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