按照 SCA 的浓度区间（1.15%～1.45%）计算的花，浓度中位数恰好是 1.25%，而 55g 咖啡粉对应 1000 毫升热水的那条斜线恰好经过这个点（20%，1.25%），这个点也称作为“靶心”。请问有哪些因素会影响咖啡液命中“靶心”（ ）。
A. It manipulates the independent variable. B. It influences the strength or direction of the relationship between independent and dependent variables. C. It represents the outcome or response measured in an experiment. D. It is the cause or factor believed to influence the dependent variable. ...
In general, experiments purposefully change one variable, which is the independent variable. But a variable that changes in direct response to the independent variable is the dependent variable. Say there's an experiment to test whether changing the position of an ice cube affects its ability to ...
What is the main importance of the study discussed in paragraph 3? A. It examines the response of certain grassland plants to a drought. B. It contains an index of plants that survived well in times of drought. C. It provides scientific evidence that diversity helps to make ecosystems stabl...
Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this answer Correct Option: (b) exposure Reason: A study has two types of variables: explanatory and response. The explanatory variable is the ...
Advanced expression writers can clear this option to preserve the value of a report variable throughout a report session. This is the equivalent of setting the Writable property for a report variable in RDL. Report variables are still calculated once, and then recalculated every time the report ...
Was there an independent variable in the Monster Study? What is the null hypothesis when comparing two quantitative variables? The experimenter usually sets the value of a. the independent variable. b. the dependent variable. c. all the extraneous variables. d. none of the variables in the exp...
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
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What is the independent variable in Charles' law? Independent Variables: On any graph with x and y axes there is a dependant variable and an independent variable. The independent variable is placed on the y-axis. The independent variable is often the one that either we directly control such ...