Probability Tables (VCE SSCE Mathematical Methods): Quizzes

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Probability Tables
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What does a probability table provide for probability problems?

A tabular method for representation

How many distinct regions are created when two sets AA and BB intersect?

Four non-overlapping regions

What do the main cells of a probability table contain?

Joint probabilities

What do marginal probabilities in a probability table represent?

Probability of a single event

What are probability tables sometimes called in mathematical contexts?

Karnaugh maps

What do both row totals and column totals sum to in a probability table?

1

What does Pr(AB)+Pr(AB)\Pr(A \cap B) + \Pr(A \cap B') equal?

Pr(A)\Pr(A)

Why can ABA \cap B and ABA \cap B' have their probabilities added directly?

They are mutually exclusive

If Pr(A)=0.7\Pr(A) = 0.7, Pr(B)=0.6\Pr(B) = 0.6, and Pr(AB)=0.4\Pr(A \cap B) = 0.4, what is Pr(AB)\Pr(A \cup B)?

0.90.9

Which four regions do two intersecting sets AA and BB create?

ABA \cap B, ABA \cap B', ABA' \cap B, ABA' \cap B'

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