| A | B |
|---|
| Sucessful Event | the desired outcome of an experiment |
| Trial | the action in the experiment |
| Experimental Probability | the number of successful events of an experiment compared to the total number of trials. |
| RAND | the code to create Random numbers in Excel or your calculator |
| Simulation | an experiment with mathematical characteristics similar to the actual event; simulations often use random numbers to estimate a probability |
| Mean | the average |
| Median | the middle number |
| Mode | the number that appears most often |
| Range | the difference between the highest and lowest number |
| Margin of Error | all the results that are included 3 trails on either side of the mean |
| Addition Principle of Counting | let m be ways to make first choice, let n be ways to make a second choice and t the ways that are repeated, then m+n-t will yield the ways to make a first or second choice |
| Venn diagram | a diagram used to represent the relationships among different sets of data |
| Intersection | the regions that overlap each other, they are considered part of both sets |
| Union | represents the combined regions I, II, and III of the Diagram. The data represented is in one group or the other, not both |
| Disjoint | when two sets have no members in common |
| Tree diagram | A diagram that is used to find all the possible choices in a situation in which one choice and another choice need to be made |
| Multiplication principle of counting | m ways to make a choice and n ways to make 2nd choice, then m x n ways to make a first and second choice. |
| Equally likely | each outcome has the same probability of happening |
| Theoretical probability | : the number of successful events compared to the number of equally likely outcomes |
| Independent events | the occurrence of the first event does not affect the probability of the second event. |
| Dependent event | the occurrence of the first event does affect the probability of the second event |
