There are 8 magazines lying on a table; 4 are fashion magazines and the other 4 are sports magazines. If 3 magazines are to be selected at random from the 8 magazines, what is the probability that at least one of the fashion magazines will be selected?
~$\frac{1}{2}$~
~$\frac{2}{3}$~
~$\frac{32}{35}$~
~$\frac{11}{12}$~
~$\frac{13}{14}$~
1本是时尚杂志且2本是体育杂志的概率==C(1,4)*C(2,4)/C(3,8);2本是时尚杂志且1本是体育杂志的概率=C(2,4)*C(1,4)/C(3,8);3本是时尚杂志的概率=C(3,4)/C(3,8),三者相加=13/14
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