The answer is: -72.19634511
        
             
        
        
        
Answer:
Histogram B best represents the data.
Step-by-step explanation:
student:     Hours:
 a                0.6
 b                0.5
 c                2.5
 d               2.5
 e               1.5
 f                2.5
 g               0.5
 h               1.5
  I               1.5
  j               2.5
  k              2.5
  l               2.5
 m              1.5
 n               1.5
 o               1.5
Since clearly from the table we could see that none of the student spend  more than 3 hours in listening music each day.
Hence, the graph in option A and option D are incorrect.
Now we arrange our data in the interval of 1 unit to get:
Interval                   Number of students
0-1                                       3
1-2                                       6
2-3                                      6
Hence, the histogram that represents this data is:
Histogram B
 
        
                    
             
        
        
        
Answer:
24,192.
Step-by-step explanation:
The first number must be one of 2,3,4,5,6,7,8 or 9. That is 8 possibilities.
The number of permutations of the other 4 numbers is 9P4
= 9! /  (9-4)!
= 3024
Now we multiply by the 8:
3024 * 8
= 24,192.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
 
        
             
        
        
        
Answer:
false
Step-by-step explanation: