相关知识点: 试题来源: 解析 B。原因:文章中提到“In an experiment, researchers manipulate an independent variable and observe the effect on a dependent variable.”,即在实验中,研究者操纵自变量并观察其对因变量的影响,所以自变量是被操纵的变量。反馈 收藏 ...
changes because of the independent variable C. stays the same throughout the experiment D. is not important 相关知识点: 试题来源: 解析 B。解析:因变量是在实验中因为自变量的变化而变化的变量。选项 A“the scientist changes”是自变量。选项 C“stays the same throughout the experiment”是控制变量或...
A semester-long experiment contrasted the effects of two kinds of classroom practice procedures in the teaching of beginning college French (N = 292). Experimental treatments were formulated in terms of the relationship between human conceptual and linguistic systems. Students in the Contextual ...
aTo prevent diseases avoid harvesting leaves in rainy seasons or after irrigation because ground can be compacted by personnel or equipment. 因为地面可以由人员或设备,变紧密要防止疾病避免收获叶子在雨季或在灌溉以后。[translate] aIn an experiment, the independent variable is the part of the investigation...
The independent variable is the variable that is controlled and manipulated by the experimenter. For example, in an experiment on the impact of sleep deprivation
A. The variable that is changed by the experimenter. B. The variable that changes in response to the independent variable. C. The variable that is kept the same. D. The variable that is not important. 相关知识点: 试题来源: 解析 A。在实验中,自变量是由实验者改变的变量。选项 B 是因变量...
The independent variable in an experiment is the variable that ___. A. is changed by the experimenter B. is measured by the experimenter C. depends on the other variable D. has no E. ffect on the results 相关知识点: 试题来源: 解析...
An independent variable, sometimes called an experimental or predictor variable, is a variable that is being manipulated in an experiment in order to observe the effect on a dependent variable, sometimes called an outcome variable.Imagine that a tutor asks 100 students to complete a maths test. ...
Create an integer optimization variable vector namedboltsthat is indexed by the strings"brass","stainless", and"galvanized". Use the indices ofboltsto create an optimization expression, and experiment with creatingboltsusing character arrays or in a different orientation. ...
A random variable is a variable whose value is unknown or a function that assigns values to each of an experiment’s outcomes. A random variable can be either discrete, having specific values, or continuous with any value in a continuous range. ...