Examlex
Tutor.com is an online tutoring service that provides 24/7 access to tutors in over 40 subjects in its online classroom. Students can choose a variety of plans, beginning at $39.99 per month. What type of online business model does this represent?
Operational Definition
A clear, detailed description of how an experimental variable is measured or manipulated within research.
Hypothesis
A testable prediction about the conditions under which a particular behavior or mental process may occur.
Negative Correlation
An association between two variables characterized by the increase of one variable leading to the decrease of the other, and the opposite is also true.
Inverse Relationship
An inverse relationship is a correlation between two variables where one variable increases as the other decreases, and vice versa.
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