Answer:
<em>conclusion : Life expectancy of women > Life expectancy of men </em>
Step-by-step explanation:
A) Mean life expectancy of women 
from the attached table 
mean life expectancy of women = ∑fx / ∑f 
 ∑fx = 1523
 ∑f = 20
mean = 1523 / 20 = 76.15 
The line graph shows a negatively skewed distribution
B) Mean life expectancy of Men 
from the attached table 
mean life expectancy of Men = ∑fx / ∑f
∑fx = 1432
∑f = 20 
mean = 1432 / 20 = 71.6 
<em>conclusion : Life expectancy of women > Life expectancy of men </em>
 
        
             
        
        
        
Answer:
(2,0) and (2,3)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The bar over the 9 means that the nine is repeating itself 
 
        
                    
             
        
        
        
Answer:
k = -2
Step-by-step explanation:
x     -1   0   2     5
f(x)  2   0  -4  -10
ƒ(x) = kx
Substitute a pair of values for x and ƒ(x)
-10 = k×5
Divide each side by 5
k = -2
The constant of variation k = -2.