题目信息
If x is to be chosen at random from the set {1, 2, 3, 4} and y is to be chosen at random from the set {5, 6, 7}, what is the probability that xy will be even?
A:$$\frac{1}{6}$$
B:$$\frac{1}{3}$$
C:$$\frac{1}{2}$$
D:$$\frac{2}{3}$$
E:$$\frac{5}{6}$$
参考答案及共享解析

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已选答案:
正确答案:
D:$$\frac{2}{3}$$
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