Examlex
Suppose you randomly select 3 DVDs from a production run of 10. Of the 10 DVDs, 9 are expected to last a minimum of 3 years. What values of x are within two standard deviations of the mean?
Prediction
The act of forecasting or projecting future events based on current or past information.
Misery Loves Company
A common phrase indicating that people who are unhappy may get consolation from knowing others are unhappy too.
Hypothesis
A proposed explanation for a phenomenon, made as a starting point for further investigation, often based on limited evidence as a preliminary view.
Variable
An element, feature, or factor that is liable to vary or change; it's a core concept in scientific research and statistical analysis.
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