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假定某运动员每次投掷飞镖正中靶心的概率为40%.现采用随机模拟的方法估计该运动员...
假定某运动员每次投掷飞镖正中靶心的概率为40%.现采用随机模拟的方法估计该运动员两次投掷飞镖恰有一次命中靶心的概率:先由计算器产生0到9之间取整数值的随机数,指定1,2,3,4表示命中靶心,5,6,7,8,9,0表示未命中靶心;再以每两个随机数为一组,代表两次的结果.经随机模拟产生了20组随机数:
93 28 12 45 85 69 68 34 31 25
73 93 02 75 56 48 87 30 11 35
据此估计,该运动员两次掷镖恰有一次正中靶心的概率为( )
A.0.50
B.0.45
C.0.40
D.0.35
考点分析:
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