Examlex
Stream gradient, discharge, and __________ determine the velocity of a stream.
Z-statistic
A statistical measure that quantifies the difference between a sample statistic and its population parameter, measured in units of the standard deviation.
Z-test
A statistical test used to determine whether there is a significant difference between the mean of a sample and the mean of a population, or between the means of two populations.
Z-statistic
A type of standard score that indicates how many standard deviations an element is from the mean of its distribution.
Z-test
A statistical test used to determine whether there is a significant difference between the mean of a sample and the population mean, assuming the distribution is normal.
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