Unit 12 (Probability)

Question 1

A∪B means

Answer 1

A or B`

Question 2

A∩B means

Answer 2

A and B

Question 3

The equation for p(E) is

Answer 3

Number of ways E can happen/ Total number of possibilities

Question 4

p(A|B) means

Answer 4

The possibility of A given that B happens

Question 5

The equation for p(A∪B) is

Answer 5

p(A) + p(B) - p(A∩B)

Question 6

If p(A|B) = p(A) then

Answer 6

the event is independent

Question 7

If p(A|B) ≠ p(A) then

Answer 7

the event is dependent

Question 8

When P(B) > 0, the formula for P(A|B) is

Answer 8

P(A∩B)P(B)