Examlex
Use the vertical line test to determine whether the graph represents a function.
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Mean
A numerical metric that denotes the central value of a numerical array, determined by summing all the elements in the array and then dividing by the count of those elements.
Internal Reliability
A measure of consistency among multiple items or parts of a test or measurement tool.
Questionnaire
A set of written questions used for collecting information from respondents.
Positive Correlation
A relationship between two variables in which both variables move in the same direction, indicating that as one variable increases, the other also increases, and vice versa.
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Q135: <span class="ql-formula" data-value="f ( x ) =
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