The measure of XYZ is:
C. 120
        
             
        
        
        
Answer with explanation:
A x% confidence interval interprets the percentage of certainty that a person can believe that the true population parameter.
It is also represented as Point estimate ± Margin of error
Confidence level is proportional to the Margin of error.
- As confidence level increases the error bound increases that makes the confidence interval broader. 
- As confidence level decreases the error bound decreases , making the confidence interval narrower.
 
        
             
        
        
        
V = L *  W * H
V = 4 * 4 * 8
V = 16 * 8
V = 128 cubic ft
        
             
        
        
        
This would be an exponential graph and non of the answers are exponential. but the graph would be f(x)=3^x