Probability Conditional

What is the probability that a randomly selected student plays sports and does not participate in community service?

What is the probability that a randomly selected student is not in a club?

What is the probability that a student does not participate in a club given that they take sign language?

What is the probability that a student is a junior, given they passed the test?

• 3/4

• 1/4

• 17/50

• 3/10

Find P(Sophomore |Pass)

• 17/20

• 17/50

• 9/25

• 3/20

Find P(Y|P).

• 0.23

• 0.40

• 0.46

• 0.68

What is P(Foreign language | Sport)? (Remember to reduce the fraction!)

• 14/27

• 7/12

• 23/47

• 37/47

A box contains 3 brand A batteries and 7 brand B batteries. 30% of brand A batteries are faulty and 40% of brand B batteries are faulty. A battery is selected at random and then checked to see if it is faulty. What is the probability that a faulty brand B battery is selected?

• 0.28

• 1/4

• 0.42

• 0.21

A bag contains 3 lemons and 2 limes. A piece of fruit is taken from the bag and not put back. Then a second piece is taken. What is the probability of taking two limes?

• 1/10

• 2/5

• 5/20

• 4/20

The numbers 4-6 are written on cards and placed face down. Then a coin is flipped. List the sample space for selecting a card and then flipping a coin.

• 4H, 4T, 5H, 5T, 6H, 6T

• 4, 5, 6

• H, T

• 4, 5, 6, H, T