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, to test.The sample space for selecting the group to test contains ____________ elementary events.
A)12,650
B)2,300
C)455
D)16
E)15,625

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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, to test.The sample space for selecting the group to test 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