Question: a. What is a random sample? b. Why is a random sample approximately representative? c. What is the difference between a random sample selected with

a. What is a random sample?
b. Why is a random sample approximately representative?
c. What is the difference between a random sample selected with and one selected without replacement?
d. What is a table of random digits? How is it used in sample selection?
e. What other method can be used to select a random sample using a spreadsheet program?

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