Capacity (megawatts)
 20,000
 18,200
 13,320
 10,830
 19,500
 27,300
 30,600
 19,300
 24,800
 23,700
 The table shows the output capacities of 10 of the largest hydroelectric power plants in the world. What is the interquartile range of the data?
 A) 7785 
 B) 8445 
 C) 9325 
 D) 10475