Question 3.A company receives a very large shipment of electronic components.A random sample of seventeen of these components is drawn from the shipment,and the shipment is accepted if fewer than two of these components are defective.What is the probability of accepting a shipment if:
a.5% of the shipment is defective?
b.2% of the shipment is defective?
人气:411 ℃ 时间:2020-02-05 18:26:18
解答
算17个样品全是正品,1个次品,2个次品概率加起来
推荐
- 一个人上台抽奖 共三个箱子 里面只有一个有奖 抽奖人选了一个箱子 然后主持人从另外两个箱子中打开其中的一个 没奖
- 设同时掷两颗骰子,§是所得到的两个点数中不大的点数
- 已知10件产品中有3件次品,将10件产品一件件的逐一检查,直至检查出所有次品,求检查次数§的分布列和数学期望.
- 1.以A表示事件“甲种产品畅销,乙种产品滞销”,则其对立事件A为
- 甲,乙两人约定在6点到7点之间某地方会面,并约定先到者应等待另一个人15分钟,过时就马上可以离开,求两个人会面的机率.
- 2乘8-10X=3.6 2乘8-10X=3.6 1+80%X=72乘九分之1 解方程
- 已知a的绝对值=2,b的绝对值=根号2,a与b的夹角为45度,且λb-a与a垂直,求实数λ的值.
- 下列对四大名著中人物和情节的描述不正确的一项是( )
猜你喜欢