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Central tendency

Statistics ch 3.1

QuestionAnswer
If a histogram is skewed right, what does that mean? Most values are smaller, with a few very large values pulling the tail to the right.
A: It’s the “center” or “typical” value of a dataset—what best represents the whole group.
What does “spread” mean in a dataset? The variability of how spread out the values are
What does “center” mean in data? The typical average value of the data
Mean, median, mode
What are “outliers”? Extreme values that are far from most of the data
Mean = ? A arithmetic average (at all values, divided by number of values)
Median Middle value when data is in order (or average of two middle values if even number).
Mode Most frequent value in the dataset.
Created by: Sapostolopoulos
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