B. The variable that is manipulated. C. The variable that is controlled. D. The variable that is observed. 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...
control variable D. constant variable 相关知识点: 试题来源: 解析 A。解析:在实验中,由科学家改变的变量被称为自变量。选项 B“dependent variable”是因变量,是随着自变量的变化而变化的变量。选项 C“control variable”是控制变量,保持不变以确保实验的准确性。选项 D“constant variable”是常量变量,也是保持...
The purpose of variable control in an experiment is to ___. A. add more variables B. reduce the number of steps C. make sure the results are reliable D. change the outcome 相关知识点: 试题来源: 解析 C。变量控制的目的是确保结果可靠。选项 A 增加更多变量错误;选项 B 减少步骤数不对;...
In an experiment, if the independent variable is changed, what might also change? A. Dependent variable B. Control variable C. Constant variable 相关知识点: 试题来源: 解析 A。理解科学实验中的变量关系,自变量改变可能导致因变量改变,答案是 A。
It is a controllable variable in an experiment that is believed to affect the OEC or other metrics of interest. In a simple A/B test, there is usually one parameter with two values (such as A and B). In more complex experiments, ...
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. independent variable B. dependent variable C. control variable D. experimental variable 相关知识点: 试题来源: 解析 A。在科学实验中,由实验者改变的变量叫自变量,即“independent variable”;选项 B“dependent variable”是因变量;选项 C“control variable”是控制变量;选项 D“experimental variable”不是...
解析 A。本题考查科学实验中的变量概念。在科学实验中,由实验者改变的变量称为自变量(independent variable);因变量(dependent variable)是随着自变量的变化而变化的变量;控制变量(control variable)是保持不变的变量;常数(constant)是固定的值。反馈 收藏
A. response variable B. explanatory variable C. control variable D. outcome variable 相关知识点: 试题来源: 解析 B。在科学实验中,被科学家改变的变量称为解释变量。“response variable”是响应变量;“control variable”是控制变量;“outcome variable”是结果变量。反馈...
Dependent variable in a scientific experiment is ___. 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 constant D. the variable that is not related to the E. xperiment 相关知识点: 试题...