Mathematics, 21.12.2019 02:31 samantha9430
Six students, a, b, c, d, e, f, are to give speeches to the class. the order of speaking is 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 the following order: decabf
(d) that a or b will speak first.
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