

1. 
Sharon tossed three coins. What is the probability that she tossed exactly two tails, given that she tossed at least 1 tail? 


A. 

B. 



C. 

D. 



Hint 


2. 
A card is chosen at random from a standard deck of cards. Determine the probability of choosing a red card, given that the card is an ace. 


A. 

B. 



C. 

D. 



Hint 


3. 
In Mr. Jonas' homeroom, 70% of the students have brown hair, 25% have brown eyes, and 5% have both brown hair and brown eyes. A student is excused early to go to a doctor's appointment. If the student has brown hair, what is the probability that the student also has brown eyes? 


A. 

B. 



C. 

D. 



Hint 


4. 
A bag contains 5 blue marbles and 8 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 brown. 


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 

