Examlex
A(n) ____________________ occurs when a read/write head touches the surface of a hard disk platter, such as that shown in the accompanying figure, usually resulting in a loss of data and sometimes loss of the entire drive.
Sample Mean
The average value calculated from a sample of data, representing the central tendency.
Population Mean
The average value of all the data points in a population, representing the central tendency of the dataset.
Stratified Sampling
A sampling method that divides the population into smaller groups, or strata, based on shared attributes or characteristics before sampling to ensure a more representative sample.
Sampling Method
A technique used in statistics to select a subset of individuals from a population to estimate characteristics of the whole population.
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