AP Stat ch8.1

# AP Stat ch8.1 - minus the value(k The mean and standard...

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AP Stat Chapter 8 8.1 Know the four things that make something a binomial setting 1) Two categories 2) Fixed number of observations 3) Observations are independent 4) The probability for success is the same for each observation Know when and how to use P.D.F (probability distribution function) and C.D.F’s (culminative distribution function) The binomial coefficient is The binomial probability is the binomial coefficient times the probability raised to the value (k) times one minus the probability raised to the number

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Unformatted text preview: minus the value (k) The mean and standard deviation of a binomial random variable: Know the four things that make it a geometric setting (the same as binomial except there is not a fixed number of observations) Rule for calculating geometric probability: If n is any one of the values, then the probability that the first success occurs on the nth trial is P(X=n)=(1-p) n-1 p 8.2 The mean of a geometric random variable The probability that it takes more than n trials to see the first success is (1-p) n...
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AP Stat ch8.1 - minus the value(k The mean and standard...

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