Examlex
The region in the world with the greatest number of poor "street children" is Latin America.
Standard Deviation
A statistic that measures the dispersion or variability of a set of data points relative to its mean, used to quantify the amount of variation or dispersion.
Upper Quartile
It is the median of the upper half of a data set, marking the 75th percentile, where 75% of the data points are below this value.
Standard Normal Distribution
A normal distribution with a mean of 0 and a standard deviation of 1.
National Achievement Test
It is an examination given annually in many countries designed to test the academic achievement of students in a variety of subjects.
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