The U.S. Census Bureau publishes information about ages of people in the United States in Current Population
Question:
21 54 9 45 51
a. Determine the range of these ages.
b. Find the sample standard deviation of these ages by using the defining formula, Definition 3.6 on page 105.
c. Find the sample standard deviation of these ages by using the computing formula, Formula 3.1 on page 106.
d. Compare your work in parts (b) and (c).
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