Mathematics, 06.05.2020 05:02 lfg0929
Two students from aa class of 20 are chosen at random to escort a guest speaker to a presentation. The first student will introduce the speaker. The second will thank the speaker when she is done. In how many ways can the two students be chosen?
1. 1,960
2. 380
3. 240
4. 84
Answers: 3
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Two students from aa class of 20 are chosen at random to escort a guest speaker to a presentation. T...
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