Pr(E) = n(E)/n(S)
If tried problems with it, but cannot get the answer.
2007-09-16 11:19:09 · 2 answers · asked by Byron 1 in Education & Reference ➔ Homework Help
It looks like this is a very complex way of saying that the probablity predicted for an event (E) happening is the number of times you get that event divided by the total of all possible outcomes. For instance, if you flipped a coin 10 times and got heads 5 times, the probability would be 5/10 or 1/2 (50%).
If this is in your text, see if you can find a written explanation for the forumula in your book - it may not be in the same chapter, but could be found in a formula "section" in the back, or look up probability, prediction, or something similar in your index.
2007-09-16 11:31:22 · answer #1 · answered by copperhead 7 · 0⤊ 0⤋
probability is the number of successes divided by the number of possible outcomes. It looks like this definition says the probability of E is equal to the cardinality of the set of success for E divided by the cardinality of the sample space.
2007-09-16 23:46:15 · answer #2 · answered by Merlyn 7 · 0⤊ 0⤋