题目

Have you ever experienced such an annoying thing as it took so long to open a web page? You're watching stops every few minutes, which ruined your internet experience. But it could be a thing of the past. On June 3, the Ministry of Industry and Information Technology announced that China would issue licenses for the com- serialization of 5G. It means major telecom carriers will start to provide 5G services.The “G” in “5G” refers to the generations of mobile network technologies. 1G let us talk to each other,2G let us send messages, 3G gave us mobile data and the internet, and 4G made a甲、乙两人进行射击比赛,在一轮比赛中,甲、乙各射击一发子弹。根据以往资料知,甲击中8环,9环,10环的概率分别为0.6,0.3,0.1,乙击中8环,9环,10环的概率分别为0.4,0.4,0.2。设甲、乙的射击相互独立。(1)求在一轮比赛中甲击中的环数多于乙击中环数的概率;(2)求在独立的三轮比赛中,至少有两轮甲击中的环数多于乙击中环数的概率。
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