Examlex
Explain the difference between a no-treatment control group and a placebo control group.
Symmetry
A property where a shape or figure can be divided into parts that are exact reflections of each other on opposite sides of a line or plane.
Variance
A measure of the dispersion or spread within a set of data points, indicating the average of the squared deviations from the mean.
Median
The middle value in a data set, which separates the higher half from the lower half when the numbers are arranged in order.
Mode
Most frequently occurring score or value of a variable in a set of data.
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