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标题: Reading 8: Probability Concepts-LOS e 习题精选 [打印本页]

作者: 1215 时间: 2011-3-1 15:13 标题: [2011]Session 2-Reading 8: Probability Concepts-LOS e 习题精选

Session 2: Quantitative Methods: Basic Concepts
Reading 8: Probability Concepts

LOS e: Define and explain the multiplication, addition, and total probability rules

The unconditional probability of an event, given conditional probabilities, is determined by using the:

A)
addition rule of probability.

B)
total probability rule.

C)
multiplication rule of probability.

The total probability rule us used to calculate the unconditional probability of an event from the conditional probabilities of the event given a mutually exclusive and exhaustive set of outcomes. The rule is expressed as:

P(A) = P(A|B₁)P(B₁) + P(A|B₂)P(B₂) + ... + P(A|B_n)P(B_n)

作者: 1215 时间: 2011-3-1 15:13

The multiplication rule of probability is used to calculate the:

A)
probability of at least one of two events.

B)
unconditional probability of an event, given conditional probabilities.

C)
joint probability of two events.

The multiplication rule of probability is stated as: P(AB) = P(A|B) × P(B), where P(AB) is the joint probability of events A and B.

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