Answer:
See explanation below. 

Step-by-step explanation:
Notation
First we need to define the following events:
E = The student is in a major of enginnering
O= The student is in a major different from enfinnering
M= The student is in the marching band
Solution for the problem
For this case we can calculate the following probability:

And that represent the following event: "Given a randomly selected student is an engineering major, what is the probability  the student is in the marching band"
And the probability that need to calculate to compare is this one:

And that represent the following event: "Given a randomly selected student is NOT an engineering major, what is the probability  the student is in the marching band"
And if the claim is satisfied we need to see this:

 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
Plug in the x values to get the y values
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Slope, shmlope. What's the q?