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Probability Rules in Addition, Multiplication and Events

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Please helps with the following problem.

1.) The special rule of addition is used to combine

a.) events that total more than one
b.) mutually exclusive events
c.) events based on subjective probabilities
d.) independent events

2) Events are independent if

a.) we can count the possible outcomes
b.) the probability of their occurrence is greater than 1
c.) the probability of one event happening does not affect the probability of another
d.) by virtue of one event happening another cannot

3.) General rule of multiplication to combine

a.) events that total more than 1.00
b.) mutually exclusive events
c.) events based on subjective probabilities
d.) events that are not independent

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Solution Preview

1.) The special rule of addition is used to combine

a.) events that total more than one
b.) mutually exclusive events
c.) events based on subjective probabilities
d.) independent events

You use the special rule of addition, P(X or Y) = P(X) + P(Y), when two or more events will ...

Solution Summary

This solution helps answer various problems that apply addition, multiplication and events

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See Also This Related BrainMass Solution

Probability : Addition and Multiplication Rules

It can be easy enough to get the addition rule and the multiplication rule confused. Tell me the difference between the two. Provide the notations and then tell me what type of problem I would use each one for.

Addition Rule:
Notation for Addition Rule: P(A or B) = P(event A occurs or event B occurs or they both occur).

Multiplication Rule:
Notation: P(A and B) = P(event A occurs in a first trial and event B occurs in a second trial).

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