

1. 
Statistics collected in a particular coalmining region show that the probability that a miner will develop respiratory problems is . Also, the probability that a miner will develop back problems is . If one health problem does not affect the other, what is the probability that a randomly selected miner will develop respiratory problems but will not develop back problems? 


A. 

B. 



C. 

D. 



Hint 


2. 
Determine the probability of choosing a penny or a nickel from 7 pennies, 2 nickels and 5 dimes. 


A. 

B. 



C. 

D. 



Hint 


3. 
Find the probability of selecting an orange, replacing it, then selecting an apple from a bowl of 8 oranges and 6 apples. 


A. 

B. 



C. 

D. 



Hint 


4. 
Find the probability of choosing either a blue ball or a green ball from a bag containing 3 blue, 5 green, 1 red, and 7 yellow balls. 


A. 

B. 



C. 

D. 



Hint 


5. 
Find the probability of randomly picking 3 kittens of which at least 2 are female kittens, from a group of 7 male kittens and 5 female kittens. 


A. 

B. 



C. 

D. 



Hint 

