In class last week we started off with experimental probability and theoretical probability. These are both ways of finding the probability of a chance of winning a game or losing to friend in Rock-Paper-Scissors. A good example of this flip a coin four times and record the outcome and see if the out come is HHTH (Heads Heads Tails Heads). First we should make a tree-diagram this will include all possible outcomes.
From this data we can tell that there are a total of 32 outcomes. Only one is the one we want, the favorable outcome, which is HHTH. The way to find relative frequency is favorable over possible in this case the fraction is 1/32 you can leave the probability as a fraction or you can change it to a percentage. The way you do that is you make the fraction a decimal(divide denominator by numerator) and multiply by 100. The result is 3.12% The relative frequency is 1/32 or 3.12%.
The other way is experimental probability so flip one coin four times and record the outcome, do this four times.
1st htth
2nd ttht
3rd hthh
4th tthh
To find experimental probability we do occurrence over trial so that would be 0/4 or 0%.
Usually theoretical probability works better.
Eric out
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