Examlex
Use a sum or difference identity to find the exact value.
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Sample Variance
A statistical measure that quantifies the degree to which sample points differ from the sample mean.
Population Mean
The arithmetic average of a set of values or a distribution in the entire population, representing the central location of the data.
Tire Rotation
The practice of moving the wheels and tires of a vehicle from one position to another to ensure even tire wear.
Significance Level
The probability of rejecting the null hypothesis when it is actually true, typically set at 0.05 or 5%, indicating the threshold of accepting or rejecting statistical evidence.
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