probability

What is the probability of getting a head when tossing a fair coin ?

• 0

• 1

• 1/2

• 3/4

Which of the following statements about probability is correct?

• Probability can be greater than 1

• Probability of an impossible event is 1

• Probability of a certain event is 0

• probability is always between 0 and 1

A bag contains 3 red balls ,2 blue balls and 5 green balls.what is the probability of randomly selecting a blue ball ?

• 1/5

• 2/10

• 1/2

• 2/5

If two events A and B are independent, what is the probability of both occurring ?

• P(A) + P(B)

• P(A) × P(B)

• P(A) - P(B)

• P(A)/P(B)

What is the probability of drawing an ace from a standard deck of 52 cards ?

• 1/52

• 4/52

• 13/52

• 3/52

If P(A) = 0.6 , P (B) = 0.4,and P(AnB) =0.2,what is P(AUB) ?

• 0.8

• 1

• 0.6

• 1.2

If A and B are mutually exclusive events, then what is P(AnB)

• 1

• 0

• P(A) + P(B)

• P(A) × P(B)

Which theorem states that if two events A and B are mutually exclusive, then P(AUB) = P(A)+P(B) ?

• Multiplication theorem

• Addition theorem

• Bayes theorem

• Total probability theorem

If a fair die is rolled,what is the probability of getting an even number?

• 1/3

• 1/6

• 1/2

• 2/3

If P(A/B) = P(A),then what can be said about events A and B ?

• They are independent

• They are mutually exclusive

• They are exhaustive

• They are complementary