Traditional Culture Encyclopedia - Weather inquiry - In life, we often hear such comments: "Yesterday, the weather forecast said that there was a 90% chance of precipitation, but there was no rain at all. The weather forecast was too bad."

In life, we often hear such comments: "Yesterday, the weather forecast said that there was a 90% chance of precipitation, but there was no rain at all. The weather forecast was too bad."

The "precipitation" in weather forecast is a random event.

The probability of 90% indicates the probability of the random event "precipitation".

We know that in an experiment, there is a 90% probability that the event may not occur.

So "it didn't rain yesterday" doesn't mean that the weather forecast of "the probability of precipitation yesterday is 90%" is wrong.