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Arrange the acids HBr, H2Se, and H3As in order of increasing acid strength.
Median
A measure of central tendency in statistics, representing the middle value in a set of data when arranged in order.
Standard Deviation
A statistical measure that quantifies the amount of variation or dispersion of a set of data values from the mean value.
Percentile Score
The percentage of people someone scores higher than on a scale or test; a score at the 90th percentile means someone scores higher than 90% of the people who took the scale.
Normal Distribution
A symmetrical bell-shaped distribution in which most of the data points cluster around the mean, with decreasing frequency toward the tails.
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