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Six students, A, B, C, D, E, F, are to give speeches to the class....

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Basic Math

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Six students, A, B, C, D, E, F, are to give speeches to the class. The order of speakingis determined by random selection. Find the probability that (a) E will speak first (b)that C will speak fifth and B will speak last (c) that the students will speak in thefollowing order: DECABF (d) that A or B will speak first.

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