standard_description: Develop a probability model and use it to find probabilities of events. Compare probabilities from a model to observed frequencies; if the agreement is not good, explain possible sources of the discrepancy.
problem_activity: Three data sets are shown below.
[IMG]
a.   Estimate each population mean based on the data in the samples.
b.   Which estimate do you think is most accurate? Explain your reasoning.


aligns: no