Two sources of variation in the length of hex bolts exist. Production variation and measurement error. The QC manager knows that the standard deviation from these sources is 0.24" and 0.43" , respectively. What is the total standard deviation.A . .10 inch

题目

Two sources of variation in the length of hex bolts exist. Production variation and measurement error. The QC manager knows that the standard deviation from these sources is 0.24" and 0.43" , respectively. What is the total standard deviation.

A . .10 inch.

B . .19 inch.

C . .34 inch.

D . .49 inch.

E . .67 inch.

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更多“Two sources of variation in the length of hex bolts exist. Production variation and measur ”相关问题

  • 第1题：

    Americans choose pasta,fruit,and vegetables,which supply them with carbohydrates,to give them strength for physical activities.For romantic dinners,however Americans choose shrimp and lobster.Americans’awareness of nutrition,along with their changing tastes and needs,leads them to consume a wide______of foods.

    A.sort
    B.variety
    C.kind
    D.variation

    答案：B
    解析：
    a variety of=all kinds of“各种各样的”，指多样化，而variation是变化的东西。

  • 第2题：

    执行下列代码，程序的输出结果是： cout ＜＜″Hex：″＜＜ hex ＜＜ 255；

    A．ff

    B．hex:ff

    C．Hex:ff

    D．f


    Hex:ff

  • 第3题：

    名词解释： 1、遗传（heredity）： 2、变异（variation）： 3、遗传学（genetics）： 4、可遗传（heritable)变异： 5、不可遗传（non-heritable)变异：


    一、 1. 遗传(heredity):指生物亲代与子代相似的现象,即生物 在世代传递过程中可以保持物种和生物个体各种特性不变;“ 种瓜得瓜,种豆得豆” 。 2. 变异 (variation):指生物在亲代与子代之间,以及在子代与子代之间表现出一定差异的现象。 二、两者为生物的两个基本属性,也是生命运动过程中的一对矛盾。相互对立:遗传可以使亲代和子代之间保持种的稳定性;变异使生物不断进化,产生新物种。相互依存:变异所出现的新特性只有通过遗传才能保持。遗传是相对的、保守的,而变异是绝对的、发展的。

  • 第4题：

    TI提供C54x DSP的自举列表生成程序是以下哪项？

    A．hex500.exe

    B．hex54x.exe

    C．hex5000.exe

    D．hex54xx.exe


    hex500.exe

  • 第5题：

    variation的中文是（）


    变异

  • 第6题：

    9、variation的中文是（）


    D

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