ap stat formulas
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1 prop Z interval formula
p+/-z*(sq root) p(1/p)/n
t-interval details
x+\-t*(s/sq rt of n)
margin of error formula
z*(sq root) p(1-p)/n
2 prop z interval formula
(p1-p2) +/- z+ (sq rt) p1(1-p1)/n1 + p2(1-p2)/n2
2 sample t interval formula
(x1-x2) +/- t* (sq root) s1(sq)/n1+ s2(sq)/n2
paired t-interval formula
Xd+/-t* (Sd/sq rt of N)
