GRE Formulas

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Author:
burksee
ID:
261695
Filename:
GRE Formulas
Updated:
2014-02-12 18:21:19
Tags:
Probability GRE Geometry
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Description:
Gre Study Math
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  1. n!
    _____
    k!(n-k)!
    Combination formula
  2. n!
    ______
     (n-k)!
    Permutation Formula
  3. P and F are independent
    P(E&F)=P(E)xP(F)
  4. P and F are mutually exclusive
    P(E or F)= P(F)+P(E)
  5. P or F when not mutually exclusive
    P(E or F)=P(E)+P(F)-(PE and PF)
  6. Sum of polygon interior angles
    (n-2)(180)=sum of interior angles

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