Wednesday, July 21, 2010

What is Probability?


What is probability?


Probability can be a complex field of mathematics, but in its simplest definition it is the likelihood of an event being true divided by the total number of possibilities. For example, flipping a coin has two possibilities: heads or tails. There is only one way for a coin to land on heads, so the answer to this probability question is 1:2.

Why Is the Study of Probability Important?
Probability and statistics are useful to us in many ways. This can also help us on algebra calculators Knowing the likelihood of an event happening is important information in decision making that is used in nearly every field. For example, research studies use probability in determining whether or not a new drug is worth putting on the market. Does the effectiveness of the drug outweigh the harm it causes to a patient's body? Probability can help answer that question.

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