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What about frequency and relative frequency?

2007-05-10 15:26:54 · 5 answers · asked by ♥♦♣♠ 2 in Science & Mathematics Mathematics

5 answers

Probability and relative frequency, yes. Frequency, not really (which means "yes but the answers will be silly and fairly meaningless").

Remember that probability is defined in terms of relative frequency: the probability of an event occuring is the relative frequency with which it occurs over a large (->∞) number of trials. So they are essentially the same thing.

Example: 40% of the answers in the Mathematics area are incorrect. (Relative frequency)
Example: If I pick a resolved question at random, the probability that the best answer was chosen by the asker is 23%.
But this doesn't make sense for frequency: if I answer 10 questions there's no point in writing this as 1000%, because it's not 1000% OF anything. Percentages should only be used when you have a ratio of some sort.

2007-05-10 15:30:54 · answer #1 · answered by Scarlet Manuka 7 · 0 0

Kind of. When you say that the probability of some event is .75, you are sort of saying that, in the long run, it will happen 75% of the time. However, not all events to which we assign probabilities are repeatable, so saying that it will rain on 75% of the days whose date is 11 May 2007 does not make much sense.

2007-05-10 15:33:41 · answer #2 · answered by theholeinyourculture 2 · 0 0

Yes. Probability is the percentage that something will happen.

2007-05-10 16:01:58 · answer #3 · answered by eilishaa 6 · 0 1

you can change a probability to a percent, just move the decimal 2 places.

2007-05-10 15:31:19 · answer #4 · answered by leo 6 · 0 1

NO

2007-05-10 15:31:04 · answer #5 · answered by Murtagh 3 · 0 4

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