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Andrew is a heroin addict,and he usually shoots up at his friend Dave's place.Following an intervention and treatment,Andrew is trying very hard to stop using heroin but finds that when he goes over to Dave's place,his craving for the drug is very strong.In this example,the context of taking the drug serves as
Random Variation
The natural fluctuation in data or process outcomes, occurring without a specific, predictable cause.
Sample Proportion
The ratio of the number of times an event occurs to the total number of observations or trials in the sample.
Standard Error
Standard error measures the accuracy with which a sample distribution represents a population by quantifying the variability of the sample mean.
Population Proportion
The fraction or percentage of a population possessing a particular characteristic.
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