Answer:
all work is shown and pictured
 
        
             
        
        
        
        
A. yes this is a statistical question. it is a statistical question because you can answer the question by collecting data. 
b. some clusters are.. 3,4,5, and 6 they are clusters because they are assembled around a particular value. the peak is 6 because it is the highest number it reaches. there are no gaps in this table. 
c. to calculate the average with a graph you sum the numbers then divide by the total number of values in the set. for this table you add 1+2+3+3+4+4+4+5+5+5+5+5+5 then you divide by 15.
1+2+3+3+4+4+4+5+5+5+5+5+5=51
51 ÷ 15= 3.4
        
             
        
        
        
180 cubic units
Explanation:
To find the volume of a rectangular prism, multiply together length • width• height.
Height- 5
Width- 9
Length- 4
5 x 9 x 4= 180
Com.ment me if my answer is correct.
MARK ME BRAINLIEST TYSM! Have a nice day/night!
        
             
        
        
        
Answer:
Complementary, x=78
Step-by-step explanation:
90= (x-8)+20
complementary angles add up to 90 degrees.