Examlex
Polluting chemicals enter the environment only through human activities.
Confidence
The degree of certainty or trust one can place in a particular result or conclusion, often expressed as a percentage in statistical analyses.
Observations
Elements of a sample or population that have been collected and can be analyzed statistically.
Normal Population
A statistical population where the data points are distributed evenly around the mean, typically forming a bell-shaped curve known as a normal distribution.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, often denoted by alpha and used to determine the threshold for statistical significance.
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