

1. 
Which statement is not true for a binomial experiment? 


A. 
The outcomes of each trial must be dependent. 


B. 
Each trial has exactly two outcomes. 


C. 
The probabilities in each trial must be independent. 


D. 
There must be a fixed number of trials. 


Hint 


2. 
Kyle guesses at all of the 5 questions of a multiple choice quiz. Find the probability that he gets exactly 3 answers correct if each question has 4 choices. 


A. 

B. 



C. 

D. 



Hint 


3. 
A number cube is tossed four times. Find the probability that at least two 6s are tossed. 


A. 
0.1106 
B. 
0.1319 


C. 
0.1748 
D. 
0.0962 


Hint 


4. 
The probability of tossing a tail on a bent coin is . The coin is tossed 5 times. Find the probability of tossing exactly 3 tails. 


A. 
0.2906 
B. 
0.3114 


C. 
0.3292 
D. 
0.3028 


Hint 


5. 
Kathy guesses at all of the 10 questions on a multiple choice exam. Find the probability that she gets 3 questions correct if each question has 5 choices. 


A. 
0.1843 
B. 
0.2013 


C. 
0.1124 
D. 
0.1556 


Hint 

