# Probabilities – Events

## Probabilities - Events

### Introduction to probabilities

• Events / Sample Space
• Probability scale: Range from 0 to 1
• Probability of a single Event

Probability Events

Introduction to probabilities

• Events / Sample Space
• Probability scale: Range from 0 to 1
• Probability of a single Event

.

Mutually Exclusive Events

2 mutually exclusive events A & B

• P(A or B) = P(A) + P(B)
• Events that cannot happen at the same time
• aka 'OR' rule

.

Non Mutually Exclusive Events . . .

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#### Mutually Exclusive Events

2 mutually exclusive events A & B

• P(A or B) = P(A) + P(B)
• Events that cannot happen at the same time
• aka 'OR' rule

Probability Events

Introduction to probabilities

• Events / Sample Space
• Probability scale: Range from 0 to 1
• Probability of a single Event

.

Mutually Exclusive Events

2 mutually exclusive events A & B

• P(A or B) = P(A) + P(B)
• Events that cannot happen at the same time
• aka 'OR' rule

.

Non Mutually Exclusive Events . . .

This video is restricted to members only.  Login or register to become a member.

#### Non Mutually Exclusive Events

2 non mutually exclusive events A & B

• P(A∪B) = P(A) + P(B) - P(A∩B)
• A Union B ('OR' rule for non mutually exclusive events)

Probability Events

Introduction to probabilities

• Events / Sample Space
• Probability scale: Range from 0 to 1
• Probability of a single Event

.

Mutually Exclusive Events

2 mutually exclusive events A & B

• P(A or B) = P(A) + P(B)
• Events that cannot happen at the same time
• aka 'OR' rule

.

Non Mutually Exclusive Events . . .

This video is restricted to members only.  Login or register to become a member.

#### Independent Events

2 independent events A & B

• P(A and B) = P(A) × P(B)
• Outcome of event A does not impact the probability of event B.
• 'AND' rule for independent events

Probability Events

Introduction to probabilities

• Events / Sample Space
• Probability scale: Range from 0 to 1
• Probability of a single Event

.

Mutually Exclusive Events

2 mutually exclusive events A & B

• P(A or B) = P(A) + P(B)
• Events that cannot happen at the same time
• aka 'OR' rule

.

Non Mutually Exclusive Events . . .

This video is restricted to members only.  Login or register to become a member.

#### Dependent Events

2 dependent events A & B

• P(A and B) = P(A) × P(B|A)
• Outcome of event A does impact the probability of event B.
• 'AND' rule for dependent events

Probability Events

Introduction to probabilities

• Events / Sample Space
• Probability scale: Range from 0 to 1
• Probability of a single Event

.

Mutually Exclusive Events

2 mutually exclusive events A & B

• P(A or B) = P(A) + P(B)
• Events that cannot happen at the same time
• aka 'OR' rule

.

Non Mutually Exclusive Events . . .

This video is restricted to members only.  Login or register to become a member.