Probability

Formula for P(A or B)?

• P(A and B)/P(B)

• P(A) + P(B) + P(A and B)

• P(A) + P(B) - P(A and B)

• P(A and B)/P(A)

Formula for P(A | B)?

• P(A and B)/P(B)

• P(A) + P(B) + P(A and B)

• P(A) + P(B) - P(A and B)

• P(A and B)/P(A)

Formula for P(B | A)?

• P(A and B)/P(B)

• P(A) + P(B) + P(A and B)

• P(A) + P(B) - P(A and B)

• P(A and B)/P(A)

Two events, A and B, are independent if:

• P(A|B) = P(B|A)

• P(A|B) = P(A) and P(B|A) = P(B)

• P(A|B) = P(B) and P(B|A) = P(A)

• P(A & B) = 0

Two events, A and B, are mutually exclusive if:

• P(A|B) = P(B|A)

• P(A|B) = P(A) and P(B|A) = P(B)

• P(A|B) = P(B) and P(B|A) = P(A)

• P(A & B) = 0

For a standard 6-sided dice, what is P(even)?

• 1/6

• 1/3

• 1/2

• 2/3

For a standard 6-sided dice, what is P(even & < 6)?

• 1/6

• 1/3

• 1/2

• 2/3

For a standard 6-sided dice, what is P(<6 | even)?

• 1/6

• 1/3

• 1/2

• 2/3

For a standard 6-sided dice, what is P(<6 or even)?

• 1/6

• 1/3

• 2/3

• 1

For a standard 6-sided dice, what is P(not <6)?

• 0

• 1/6

• 2/3

• 1