Chapter 5 Section 2: Binomial Probabilities. trial – each time the basic experiment is performed.

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Presentation transcript:

Chapter 5 Section 2: Binomial Probabilities

trial – each time the basic experiment is performed

 Properties of a Binomial Experiment  fixed number of trials, denoted n  each trial is independent and identical  each trial has two possible outcomes - one outcome is success (S) P(S) = p P(S) = p - one outcome is failure (F) P(F) = q P(F) = q - the values of p and q do not change from one trial to another change from one trial to another  find the probability of r successes out of n trials

Formula P(r) =

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Example Thirty percent of the voters in a large voting district are veterans. If 10 voters are randomly selected, find the probability that less than five will be veterans.