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The Complete Idiot's Guide to Statistics, 2nd Edition by Robert Donnelly

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Characteristics of a Binomial Experiment

If you remember, in Chapter 6 we defined experimenting as the process of measuring or observing an activity for the purpose of collecting data. Let’s say our experiment of interest involves a certain professional basketball player shooting free throws. Each free throw would be considered a trial for the experiment. For this particular experiment, we have only two possible outcomes for each trial; either the free throw goes in the basket (a success) or it doesn’t (a failure). Because we can have only two possible outcomes for each trial, this is known as a binomial experiment.
def•i•ni•tion
A binomial experiment has the following characteristics: (1) the experiment consists of a fixed number of trials ...

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