Conditional Probability

What is the probability that a boy will speak german?

• .5

• .4
• .16
• .22

What is the probability that someone who speaks german is a boy?

• .7273
• .4
• .16
• .22

What is the probability if they speak French they are a girl?

• 2.14
• .24
• .4
• .8571

What is the probability if they are a girl that they speak French?

• 2.14
• .24
• .4
• .8571

What is the probability that a student who plays sports, plays an instrument?

• .2
• .8

• .10
• .5

What is the probability that the student plays an instrument, plays a team sport 

• .8

• .7272

• .10
• .5

What is the probability that if they drive a Toyota they are male?

• .525
• .4627
• .6774
• .3225

What is the probability that someone who drives a Honda is female? 

• .527

• .4627
• .6774
• .3143

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red? (Reduce Fraction)

• 3/10
• 3/9
• 1/9
• 1/3

• 4/20
• 6/15
• 1/2
• 4/14