2.
通过模拟试验,产生了\(20\)组随机数
\(7130\) \(3013\) \(7055\) \(7430\) \(7740\)
\(4122\) \(7884\) \(2604\) \(3346\) \(0952\)
\(6107\) \(9706\) \(5774\) \(5725\) \(6576\)
\(5929\) \(1768\) \(6071\) \(9138\) \(6254\)
每组随机数中,如果恰有三个数在\(1\),\(2\),\(3\),\(4\),\(5\),\(6\)中,则表示恰有三次击中目标,问四次射击中恰有三次击中目标的概率约为\((\) \()\)