The Language of Probability

Expressing Probability

The language of probability is quite simple. It is important that you use it when solving and answering probability questions in order to get them completely correct.

Basic Language of Probability

Here are the basic wordings that you should try to use when expressing probability: Certain - The event is definitely going to occur. Very Likely - The event is very likely to occur but there is a very small chance of it not occurring. Likely - The event is likely to occur but it may not. Even Chance (50:50) - There is an even chance of the event occurring and not occurring. Unlikely - The event is unlikely to occur but it may. Very Unlikely - The even is very unlikely to occur but there is a small chance of it to occuring. Impossible - There is no chance that the even will occur. It is impossible. You can use these terms to describe the like-hood of something happening. However, since you are not giving an accurate probability, people may interpret these terms differently. This is why we try to calculate the probability.

Using P(...)

To express what we are finding the probability of, we use P(...). The P stands for probability and in the interior of the brackets you write what you will find the probability of.  Lets imagine a dice. This is what we could write for certain probabilities: The probability that we get a 3 = P(3) The probability that we get odd numbers = P(odd) The probability that we get a 1 or a 5 = P(1 or 5) As you may have noticed, it is quite simple to write probabilities like this. There is no rule how we have to write the information inside the brackets. However, you should try to ensure that you give all the information necessary but keep it concise.

Calculating Probability

Now that you are familiar with the basic language of probability, you should look at how to find probabilities of single or combined events. Please share this page if you like it or found it helpful!
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Chapter 21.1:  Learning Outcomes Students will learn the basic language of probability! Students will learn how to use the P(A) notation.



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