Examlex
The acid-base indicator phenolphthalein is colorless in acidic solutions and bright pink in basic solutions.
Sample
A selection from a broader population designed for the process of collecting data, through either observation or questioning, to generate statistical insights about that population.
Mean
The arithmetic average of a set of numbers computed by adding them together and dividing by the count of those numbers.
Median
The middle value in a data set when the values are arranged in ascending or descending order.
Skewed
A description of data that are not symmetrically distributed around the mean, often indicating a longer tail on one side of the distribution.
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