Solution: We are given below data:

Now to find the mean deviation, we use the below formula:

Where:
 represents the summation
  represents the summation
X, represents the observation.
 represents the mean
 represents the mean
N represents the number of observation.


Therefore, the mean deviation is:

         = 4
 
        
                    
             
        
        
        
5:9 is just 5/9
Hope this helps!
        
             
        
        
        
Answer:
26.4ft²
Step-by-step explanation:
I first converted the centimeter values to feet
140Cm x 30.48 = 4.59
70cm x 30.48 = 2.3
the paper required is approximately equal to the area of the pyramid.
area of pyramid is equal to area of triangle + base²
Are of triangle = 1/2 x b xh
= 4 x 1/2 x4.59x2.3 + (2.3)²
= 2 x 4.59 x 2.3 + 5.29
= 26.4 feet²
therefore it will take 26.4 feet² paper to make each tree, including the bottom.
 
        
             
        
        
        
Answer:
10x5 1/2= 55 x 4= 220 so the answer is 220in3
Step-by-step explanation: