Consider the following randomized controlled experiment to study the effect of a new drug on the heart rate of healthy rats. 5 rats were randomly assigned to one of five doses and the maximum observed decrease in heart rate in one hour was recorded. The data obtained are: From this study it can be said that: Select one: a. Explanatory variable and response variable can be either of the two because the study does not specify. b. nothing can be said c. response variable is Dose and explanatory variable is (DFC) d. explanatory variable is Dose and response variable is (DFC)
Consider the following randomized controlled experiment to study the effect of a new drug on the heart rate of healthy rats. 5 rats were randomly assigned to one of five doses and the maximum observed decrease in heart rate in one hour was recorded. The data obtained are: From this study it can be said that:
Select one:
a. Explanatory variable and response variable can be either of the two because the study does not specify.
b. nothing can be said
c. response variable is Dose and explanatory variable is (DFC)
d. explanatory variable is Dose and response variable is (DFC)
An explanatory variable is also known as independent variable or predictor variable.
A response variable is also known as dependent variable or outcome variable.
Clearly, response variable depends on the explanatory variable. The response variable is the focus of a question in a study.
In more simple words, input variable is the explanatory variable and the output variable is the response variable
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