The volume of Oxygen consumed ( in liters perminute) while a person is at rest a

Question

The volume of Oxygen consumed ( in liters perminute) while a person is at rest and while he or she is exercising(running on a treadmill) was measured for each of 50 subjects. Thegoal is to determine if the volume of Oxygen consumed duringaerobic excercise can be estimated from the amount consumed atrest.
In this study the response variable is:

A. The volume of Oxygen consumed at rest
B. The volume of Oxygen consumed while running
C. The volume consumed at rest or while running. It doesn't matterwhich is considered the respnonse.
D. The measuring instrument used to measure the volumeconsumed. Also Please if time answer this one: A researcher measures the correlation betweentwo variables. This correlation tells us:

A. Whether there is a relation between two variables
B. Whether or not a scatter-plot shows an interesting pattern
C. Whether a cause and effect relation exists between twovariables
D. The strength of a straight line relation between twovariables The volume of Oxygen consumed ( in liters perminute) while a person is at rest and while he or she is exercising(running on a treadmill) was measured for each of 50 subjects. Thegoal is to determine if the volume of Oxygen consumed duringaerobic excercise can be estimated from the amount consumed atrest.
In this study the response variable is:

A. The volume of Oxygen consumed at rest
B. The volume of Oxygen consumed while running
C. The volume consumed at rest or while running. It doesn't matterwhich is considered the respnonse.
D. The measuring instrument used to measure the volumeconsumed. Also Please if time answer this one: A researcher measures the correlation betweentwo variables. This correlation tells us:

A. Whether there is a relation between two variables
B. Whether or not a scatter-plot shows an interesting pattern
C. Whether a cause and effect relation exists between twovariables
D. The strength of a straight line relation between twovariables

Explanation / Answer

The volume of Oxygen consumed ( in liters per minute) while aperson is at rest and while he or she is exercising (running on atreadmill) was measured for each of 50 subjects. The goal is todetermine if the volume of Oxygen consumed during aerobic excercisecan be estimated from the amount consumed at rest.
In this study the response variable is:
B. The volume of Oxygen consumed while running
because Response variables are the "outputs" of your model A researcher measures the correlation between two variables.This correlation tells us:
A. Whether there is a relation between two variables
because correlation method does not prove any kind of causethe only method that will prove Cause and Effect would be aExperiment Lab.

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