Examlex
Nearly a quarter of China's 1.3 billion people are under the age of 15.How will this affect high school enrollment over the next fifteen years? The labour market over the next fifteen years?
Central Limit Theorem
A statistical theory that states that given a sufficiently large sample size from a population with a finite level of variance, the mean of all samples from the same population will be approximately equal to the mean of the population.
Sampling Distribution
The distribution of a statistic (like the mean) that would result from taking a large number of samples from a population.
Sample Size
The number of observations or data points in a sample used to estimate characteristics of a population.
Population Standard Deviation
A measure that quantifies the amount of variation or dispersion of a set of values in a population.
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