User:Bbown/sandbox

Probability Probability is a Probability is a measure of the expectation that an event will occur or a statement is true. Probabilities are given a value between 0 (will not occur) and 1 (will occur). The higher the probability of an event, the more certain that the event will occur. In probability, there are many things you can test; for example: You could flip a coin and roll a die to see what the outcomes are. If you want to record these testing you have to make something called a tree diagram which shows all the outcomes or all the possible outcomes of the object(s). There are two things in probability which are defined in order to test things. These are both called the experimental and the theoretical probability. The theoretical probability of something is when the there is a certain/ definite outcome something will occur. This is determined through reasoning or calculation. The experimental probability is when there is a chance that something will occur but is not certain/ definite that it will happen. For example an experimental probability would be something like this: Sarah rolled 10 dice and flipped 10 coins, what is the probability that she will get 10 head and 10 5s’. That would be an experimental probability problem. Experimental probability problems have no wrong and right technically because there is no real answer since it is experimental.

In reality probability occurs almost every day. For example drug makers who make something like headache cures or stomach ache cures etc. have to test their drugs multiple times to prove that the drug works. Most drug dealers have to test the drug at least 10,000 times to prove that the drug helps cure 70% of the headache or stomach ache for example.

There is another type of probability when for example there is a race. Say there is 6 people competing in the race there wouldn't be a probability because say one guy was very schizophrenic and the other guy hurt his ankle. There wouldn’t be a proper probability because they don’t have the same skill or same chance to win.

Probability occurs a lot but it doesn’t happen in everyday life because things like races occur which don’t really have that much to do with probability.