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There are 400 boys and 600 girls, 20% of boys and 23% of girls chose rock music. Now choose one boy and one girl, what is the probability that both of them like rock music?
Give your answer as a percent.
_____%
4.6 显示答案
· 相关考点
6.4.3 独立事件
6.4.3 独立事件
以上解析由 考满分老师提供。
