Examlex
Arrange the following bonds in order of increasing polarity: H-Cl, H-I, H-Br, H-F
Stratified Random Sampling
A sampling technique that divides the population into distinct subgroups, or strata, and randomly selects samples from each stratum.
Standard Error
A measure of the variability or dispersion of a sample statistic, such as the sample mean, from the population mean.
Sampling Frame
The master list from which a sample is selected.
Population
Every individual or item of a type you want to study. The entire set of individuals or items from which a sample is drawn.
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