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

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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?

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答案4/5

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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

GRE QUANTITATIVE

GRE

Expertssuggestusingadifferentpasswordforeverywebsiteyouvisit,andchangingthepasswordeveryfewmonths.Ittakestro

Themanhasaspecialtalentforartandis______ofamusician.

Asmileisastrongsignofafriendlyandopenattitudeandawillingnesstocommunicate.Itisapositive,silentsignsentwi

Ifrisnegativeandsispositive,whichofthefollowingmustbenegative?

Thesquarerootof800isbetweenwhichofthefollowingintegers?

Ifxisapositivenumberand1/2thesquarerootofxisthecuberootofx,thenx=

Twohundredmultiplesofsevenarechosenatrandom,and300multiplesofeightarechosenatrandom.Approximatelywhatpercent

TheprobabilitythateventAoccursis0.6andtheprobabilitythateventBoccursis0.5.Whatisthegreatestvalueofthepro

Select4peoplefrom3boysand3girls.Whatistheprobabilityoftwoboysandtwogirlsbeingselected?

A．宫颈活组织检查B．宫腔吸片脱落细胞学检查C．颈管搔刮活组织检查D．子宫内膜活检E．双合诊与三合诊检查用于宫颈腺癌确诊的是

( )是指保证工程安全和使用功能，对工程质量有重要影响的检验项目。

在Excel软件中，编辑区默认位于工具栏下方，由()构成。

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验钞机上发出的光能使钞票上的荧光物质发光，电视机的遥控器发出的光可控制电视机，对于它们发出的光，下列说法正确的是()。

“苦其心志，劳其筋骨，饿其体肤，空乏其身”体现的教育方法是()。

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