GRE Quantitative

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Last updated 8:31 PM on 8/20/26
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7 Terms

1
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P (A AND B) = ?

P(A) x P(B)

2
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P(A OR B) = ?

P(A) + P(B) - P(A AND B)

3
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Bayes’ Theorem

calculates the probability of a cause to be found given its effect; P(A|B) is the probability of event A occurring given that B is true

<p>calculates the probability of a cause to be found given its effect; P(A|B) is the probability of event A occurring given that B is true</p>
4
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nPr = ?

n! / (n-r)!

5
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nCr = ?

n! / (r! (n-r)!)

6
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mode

the value that appears most often in a set

7
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n! = ?

n x (n-1) x (n-2) […] 3 × 2 × 1