Examlex
Most U.S. teens report feeling hopeful and confident about the future.
Mean
The average of a set of numbers, calculated by adding them together and dividing by the number of quantities in the set.
SRS
Simple Random Sample; a method of sampling where every individual has an equal chance of being selected.
Relative Risk
A measure that compares the risk of a certain event occurring in two different groups.
Standard Error
A statistic that measures the accuracy with which a sample distribution represents a population by using standard deviation.
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