

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


A. 
The probabilities in each trial must be independent. 


B. 
There must be a fixed number of trials. 


C. 
Each trial has exactly two outcomes. 


D. 
The outcomes of each trial must be dependent. 


Hint 


2. 
The probability of tossing a head on a bent coin is 25%. Find the probability of getting 3 heads if the coin is tossed three times. 


A. 

B. 



C. 

D. 



Hint 


3. 
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 


4. 
Francis guesses at all 6 true/false questions in a trivia game. What is the probability that he guesses correctly on at least 5 of the questions? 


A. 

B. 



C. 

D. 



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. 
0.1556 
B. 
0.2013 


C. 
0.1124 
D. 
0.1843 


Hint 

