Examlex
The instructions for a batch of extreme punch calls for 400 mL of ginger ale to 4 litresof fruit juice. The ratio of ginger ale to fruit juice, in litres, is 0.4:4.
Placebo Group
A control group in an experiment that receives an inert treatment or substance (placebo) to compare against the effects of the active treatment on the experimental group.
Independent Random Samples
This term describes a statistical method in which each member of a set has an equal probability of being chosen, and the selection of one member is made without influencing the selection of any other member.
Significance Level
The threshold at which researchers decide whether an effect or result observed in data is statistically significant, commonly set at 0.05 or 5%.
Summary Statistics
Refers to a set of descriptive indices that summarize the central tendency, dispersion, and shape of a dataset distribution, including measures such as mean, median, variance, and standard deviation.
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