In a set of 25 aluminum castings, four castings are defective (D), and the remaining twenty-one are good (G). A quality control inspector randomly selects three of the twenty-five castings without replacement, and classifies each as defective (D) or good (G). The sample space for this experiment contains ___ elementary events.
A) 12,650
B) 2,300
C) 455
D) 16
E) 15,625

Question

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The Answer of In a set of 25 aluminum castings, four castings are defective (D), and the remaining twenty-one are good (G). A quality control inspector randomly selects three of the twenty-five castings without replacement, and classifies each as defective (D) or good (G). The sample space for this experiment contains ___ elementary events.
A) 12,650
B) 2,300
C) 455
D) 16
E) 15,625

In a Set of 25 Aluminum Castings, Four Castings Are