In a box of 10 electrical parts, 2 are defective.(a)If you choose one part at r

游客2024-01-12 72

问题 In a box of 10 electrical parts, 2 are defective.
(a)If you choose one part at random from the box, what is the probability that it is not defective?
(b)If you choose two parts at random from the box, without replacement, what is the probability that both are defective? [br]

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答案 4/5

解析

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In a box of 10 electrical parts, 2 are defective.(a)If you choose one part at r

Terryishavinglunchatasaladbar.Therearetwotypesoflettucetochoosef

Whatistheareaoftheshadedfigure?[img]2011q3/ct_egmatqj_egmatqchoose_0056_2

If[img]2011q3/ct_egmatqm_egmatqchoose_0468_201121[/img]andxy=4,then7y+2x=[i

[img]2011q3/ct_egmatqm_egmatqchoose_0444_201121[/img]A、0.0125B、0.025C、0.1D、0.

[img]2011q3/ct_egmatqm_egmatqchoose_0443_201121[/img]A、 B、 C、

Whatistheperimeterofasquarewitharea[img]2011q3/ct_egmatqm_egmatqchoose_0

[img]2011q3/ct_egmatqm_egmatqchoose_0182_201121[/img]A、[img]2011q3/ct_egmatqm_eg

[img]2011q3/ct_egmatqm_egmatqchoose_0280_20112[/img]Anewspaperpolled1,000

[img]2011q3/ct_egmatqm_egmatqchoose_0104_201121[/img]A、 B、 C、

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[originaltext]M:Jean,Areyouinterestedinworkinginthemarketingdepartmen

关于监理单位的权利和义务，不正确的是（）。A.按照监理合同取得监理收入 B.

下列哪项是社区干预试验的优点A.易于控制失访偏倚，实验结果易推论至全人群 B.

血竭的原植物科名和树脂类型是A.松科，单树脂B.金缕梅科，香树脂C.橄榄科，油胶

确定各主要承重构件相对位置的基准线称为()。A:比例线 B:高程线 C:定

A.金黄色、糊状、无臭味，每天2～4次 B.褐色半成形 C.淡黄色、较干、有

2020年末，全国共有从表演场馆2770个，比上年末增加54个；观众坐席数

银行承兑汇票的承兑银行，应当按照票面金额向出票人收取()的手续费。A:千分之一