Answer:
True
Step-by-step explanation:
Considering the above definition of Pooled Variance, the correct answer is TRUE.
This is because Pooled variance is used to determine the reasonable estimates of variance, where several repeated tests are expected at each value. 
This helps to provide greater precision estimates of variance.
 
        
             
        
        
        
X can always be used a 1 .
        
             
        
        
        
It means to move something
        
             
        
        
        
The answer would be, x = -14
        
                    
             
        
        
        
Standard form is f(x)=ax^2+bx+c
order of power
f(x)=2x^2-11x+2