Examlex
A toss-up state is a state in which the two major parties alternate in winning majorities.
Sigma
A symbol (σ) representing the standard deviation of a population in statistics.
Pooled Standard Deviation
Pooled Standard Deviation is a method to estimate the standard deviation from several different samples having different sizes, assuming they come from the same population.
Sample Means
The average value of a set of observations drawn from a population.
Lower Control Limit
The threshold in a control chart below which the process variation is considered to indicate an out-of-control condition.
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