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A point forecast is a single answer e.g. it is going to rain at 1pm. An interval forecast is based on uncertainity e.g. it is going to rain between 12pm and 2pm. An interval forecast is used because a forecast is always precisly wrong and appromatley right, y.e. don't give a precise answer because it will be wrong.

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Q: What is the difference between point forecast and prediction interval forecast?
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