Answer:
Mean Absolute Deviation (MAD): 8.5
Step-by-step explanation:
Xmean = (28 + 32 + 47 + 16 + 40 + 35 + 38 + 54)/8  = 290/8
Xmean = 36.25
MAD =
(28 - 36.25) + (32 - 36.25) + (47 - 36.25) + (16 - 36.25) + (40 - 36.25) + (35 - 36.25) + (38 - 36.25) + (54 - 36.25)  divided by 8 
a break down of each ( ) 
(8.25) + (4.25) + (10.75) + (20.25) + (3.75) + (1.25) + (1.75) + (17.75)  divided by 8  =  68
then you take 68/8 = Mean Absolute Deviation  8.5
 
        
                    
             
        
        
        
Answer:
we have
C = 1.5d
or
d=C/1.5
Step-by-step explanation:
when d is 12
C=1.5×12=18
when c=15
d=15/1.5=10
 
        
             
        
        
        
Answer:
5.33333
How to:
16/3
        
                    
             
        
        
        
Answer:
D
Step-by-step explanation:
The two graphs are reflections of each other in the y-axis 
If one is f(x), other is f(-x)
c^x = b^(-x) 
c = b^-1
c = 1/b