Sunday, February 5, 2012

Probability!

This week we learned about Probability.
Probability is a branch of math that deals with uncertainty. It is the likliness of an occurance. Probability is used for many things like gambiling and meterology.
-Probability can be shown in terms of percentages.
-Probability runs between the number 1 and 0. It it usually represented as a fraction and reduced.
-You can determine the probability either empirically or theoretically. In math we mostly use empirical beacause they are based on exact observations.
-An experiment can be done to determine your own statistics to find the probability of something.
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Ex.1: In a standard deck of 52 cards:

A: How many diamonds are there?
13/52 or 1/4

B: How many red clubs are there?
0/52 or 0

C: How many cards are black or red?
52/52 or 1

D: What is the probability of pulling a diamond or a heart?
26/52 or 1/2

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