Open https://media.pearsoncmg.com/cmg/pmmg_mml_shared/animations/statistics/west_applets_HTML5/popsample.html

1. Brief explanation of how the mean and median could be computed without even knowing the size of the population for a uniform distribution like the one displayed.
2. Enter "20" into the "Sample size" box and the click the "Sample" button in the upper left corner.(You should see a simulation of a sample of 20 members of the population being chosen.)What is the mean of the sample?
3. Generate a new sample of 20 by clicking the "Sample" button again.What is the mean of the sample?
4. Were the means of the two different samples the same?Do you think that this is unusual?Explain why or why not.
5. Did either of the sample means equal the population mean?Do you think that this is unusual? Explain why or why not.