

1. 
Raphael is conducting a survey of families with 2 children. If a family is selected at random, what is the probability that the family will have exactly 2 girls if the second child is a girl? 


A. 
1 
B. 



C. 

D. 



Hint 


2. 
Use the table below. Given that a student is in the seventh grade, what is the probability that she has brown eyes? 





A. 

B. 



C. 

D. 



Hint 


3. 
Using a standard deck of 52 cards, find the probability of choosing a 10 given that the card is red. 


A. 

B. 



C. 

D. 



Hint 


4. 
A bag contains 6 blue marbles and 2 brown marbles. One marble is randomly drawn and discarded. Then a second marble is drawn. Find the probability that the second marble is blue given that the first marble drawn was blue. 


A. 

B. 



C. 

D. 



Hint 


5. 
In Mrs. Lerman's classroom, 75% of the students wear watches, 30% wear eyeglasses, and 20% wear both watches and eyeglasses. A student is called to the board to explain a concept. If the student wears a watch, what is the probability that the student also wears eyeglasses? 


A. 

B. 



C. 

D. 



Hint 

