繼續研讀 Applied Statistics for The Behavioral Sciences

• Measures of Central Tendency
• The mode is the most frequent score in a distribution.
• The median is the point below which 50 percent of scores fall.
• The mean is the arithmetic average of the scores in a distribution.
• Two important properties of the mean are
1. The sum of deviations from the mean is zero.
2. The sum of squared deviations from the mean is minimum.
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