The 2000 U.S. Census also asked for each person's age. Suppose that a sample of 40o households taken from the census data showed the age of the first person recorded on the census form to be as follows. What is the sample standard deviation? * Number of Number of Employees Working in Telemarketing 0- 20 Companies 32 21 - 40 16 41 - 60 13 61 80 10 81 100 19

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