Examlex
Children first come to think abstractly and reason hypothetically in Piaget's stage.
Empirical Rule
A statistical rule stating that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean.
Measure Variability
The degree to which data points in a dataset differ from each other and from their average value.
Square Root
A value that, when multiplied by itself, gives the original number. It is often represented as \(\sqrt{x}\) for a number \(x\).
Ranges
The difference between the maximum and minimum values in a data set, indicating the spread of values.
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