A post office issued 10 of new stamps. Someone collected three of them. If two of the 10 stamps are chosen, what is the probability that none of the two stamps will be included in the three collected by this person?
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A$$\frac{1}{5}$$
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B$$\frac{4}{15}$$
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C$$\frac{1}{3}$$
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D$$\frac{2}{5}$$
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E$$\frac{7}{15}$$
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正确答案: E