Examlex
According to the text,what factors led to the Exxon Valdez accident.Was it an isolated incident? Relate that spill to the total volume of annual oil spills.What could be done differently to avoid spills in the future?
Variance
A measure of variability that denotes the average of the squared differences from the mean, showing how widely the values in a data set are spread.
Squared Deviations
Values obtained by subtracting the mean from each data point in a set, squaring the result to eliminate negative numbers, used in variance calculation.
Aptitude Test
An examination designed to measure a person's ability to develop skills or acquire knowledge, predicting future performance.
Sample Variance
A measure of the dispersion or spread of a set of sample data points around their sample mean.
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