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6 Cards in this Set

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  • Back
Conditions for binomials
1) 2 options for each trial
2) Constant probability for success
3) Trials are independent
4) Finite number of trials
Expected (mean) value of X for binomials
p * n
Standard deviation of X for binomials
Square root of (n * p * q)
Expected (mean) value of X for standard random variables
ξ(x * p(x))
Standard deviation of X for standard random variables
1) Find ξ(X squared) * p(x).
2) Subtract the mean of (x squared).
3) Find the square root.
Finding probability with geometrics
geometcdf(prob. of succes, # of trials)