Select ALL that apply: In an observational study, lurking variables are not imposed and therefore have no obvious effect on the recorded variables. the individuals are blinded to the study variables. there are not enough variables recorded to reach a conclusion about causation that would be informative. no comparisons are made between groups or types of individuals. the explanatory variables are confounded with other variables, such as the real-life reasons for their occurrence. the explanatory variables are imposed conditions assigned at random. data is recorded without purposefully trying to influence the variables.
Select ALL that apply: In an observational study, lurking variables are not imposed and therefore have no obvious effect on the recorded variables. the individuals are blinded to the study variables. there are not enough variables recorded to reach a conclusion about causation that would be informative. no comparisons are made between groups or types of individuals. the explanatory variables are confounded with other variables, such as the real-life reasons for their occurrence. the explanatory variables are imposed conditions assigned at random. data is recorded without purposefully trying to influence the variables.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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