Answer:
The margin of error is  
Step-by-step explanation:
From the question we are told that 
      The number of student is 
      The highest amount is   $200
$200
      The lowest amount is   $75
 $75 
        The sample mean is   &140
 &140 
 The Standard deviation  of this set is mathematically evaluated as 
             
Substituting values 
             
             
 The margin of error (ME) is mathematically evaluated as 
             
Where   is the critical value for
 is the critical value for  i.e the significance level
 i.e the significance level
      From the critical value table this is   
 
So 
        
       
 
        
             
        
        
        
I believe that it is E since it is pretty obvious where the middle is you just do rise/run which gives you 2,-1
        
             
        
        
        
Answer:
dude im in 8th grade and im getting college math no wonder i have a D-
Step-by-step explanation: