# Quiz 1 - I.05 method for kth%ile Returns item place in...

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I+.05 method:  for kth %ile. Returns item place in array of ordered set. K as integer. N+1 method: . K in decimal form.  For interpolators (e.g. 3.5), ipart + fpart(larger-smaller). Sample mean is just average Sample variance  PDFs: P(a<x<b) =  1) F(x) >= 0 i.e.  2) CDF: F(x) = P(X<x) =  . Shows amount of probability to that point. f(x) = some PDF µ =E[x]= Normal Distribution: X:n( µ σ 2 ) -> P(Z>z)=P(Z<-z) PMFs: 1) F(x) >= 0 for all x 2) =1 Binomial distribution (discrete): Deals with some # of trials with one of two outcomes (success or failure in general) E[x]=n-p V(x)=np(1-p) CDF of:  Poisson Distribution (discrete): P(X=x)= X:p(x,  ), and x is # of some event in some time/distance λ Poisson is for some defined interval with events occurring at random Assure events are random through the interval, and can be split into subintervals so that: 1)

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