Level 4: Consider statistics as measures of qualities of a sample distribution.
4B
Predict that, while the value of a statistic varies from sample-to-sample, its behavior in repeated sampling will be regular and predictable.
"The center clump is between 40 and 60 percent red because the spinner is half red and half blue."
"If we tested another 75 Type A batteries, I would expect the (sample) median to be similar to the median we got this time and in the clump ( a clump of sample medians between 165 and 175)."
Predicting Variation and Behavior of a Statistic
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Lessons
5 Investigating Chance