Answer:
480
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
8
Step-by-step explanation:
8 - 11 = -3 :)
 
        
             
        
        
        
<span>The measure of dispersion that indicates how much scores in a sample vary around the mean of the sample is the standard deviation.</span>
        
                    
             
        
        
        
When using both negative symbols, and then multiplying them, this would mean that the numbers would be going up. 
A negative (x's) a negative equals a positive.
Your answer: positive.