Examlex
If is a QR factorization of a matrix A, then
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Population mean
The average of a set of characteristics or values for the entire population.
Confidence interval estimate
A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter, given a specified level of confidence.
Standard deviation
A measure of the amount of variation or dispersion of a set of values, indicating how spread out the values in a data set are.
Electric usage
The amount of electrical energy consumed by a residence, industry, or equipment in a specific period.
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