Probability? i forget what this is called its simple

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The event in question occurred 500 times out of 2000 trials, which translates to a relative frequency of 1 in 4 or 25%. This means that the probability of the event happening can be expressed as 0.25 or 25%. The discussion clarifies that "relative frequency" is the correct term to use in this context. The user seeks confirmation on the appropriate terminology for describing the event's occurrence. Understanding these concepts is essential for accurately conveying statistical information.
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Lets say I have an event that happened 500 times in 2000 trials.

Then I want to say the event has 1 in 4 ... what? chance? probability? relative frequency?

Its been years since I took a course on this stuff. I need the right words here.

thanks
 
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Yes, I would call it "relative frequency".
 
The classical statement would be that the relative frequency estimate of probability is 500/2000 or 1/4.

Or you could simply say that the event occurred in 25% of the trials you observed.

What, exactly, are you looking to say?
 

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