Examlex
Stefan has collected a large amount of data in a study designed to test the effectiveness of a new drug meant to slow the progression of Alzheimer's disease.To test whether the drug was effective in a group of participants who received it,in comparison to a group that received a placebo,which type of statistics should Stefan use?
Cluster Sample
A sampling method where the population is divided into clusters, and a random sample of these clusters is chosen for analysis.
Rows
In the context of data, rows represent individual records or observations in a database or table.
Average Age
The mean age of a group of individuals, calculated by adding their ages together and dividing by the total number of individuals.
Voluntary Response Sampling
A sampling method in which participants self-select to be part of a survey or study, often leading to biased results due to non-random participation.
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