1
Q
Probability (A)
A
number of expected outcomes/number of all outcomes
2
Q
Probability (A and B)
A
P (A) x P (B)
3
Q
Probability (A or B)
A
P (A) + P (B) - if A and B CANNOT occur simultaneously
P (A) + P (B) - P (A and B) - if A and B CAN occur simultaneously
4
Q
Probability (not be A)
A
1 - P (A)
5
Q
Probability (at least be A)
A
1 - P (not be A) - not the same as the other formula
6
Q
Combination
A
without arrangement of elements
7
Q
Variation
A
with arrangement of elements
8
Q
Circular Variation
A
(n - 1)!
9
Q
Variation with Custom Repetition
A
leeds - 5!/1! x 2! x 1! x 1!
10
Q
Variation with Custom Grouping
A
Group
GMAT
flashcards
Decks in class (14)
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