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In an attempt to be environmentally friendly, the city council decides that there must be at least 18 trees on each block in the city. A sample of 20 blocks was randomly surveyed, with these results (number of trees per block): 24, 17, 7, 20, 28, 27, 10, 21, 30, 8, 30, 27, 22, 27, 27, 13, 27, 20, 24, 17. What is the sample mean number of trees per block ()?
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Calculate the Social Security and Medicare tax that would be applied to an annual salary of $35,400. a. Social Security tax: $2,194.80, Medicare tax: $513.30 b. Social Security tax: $21,948.00, Medicare tax: $5,133.00 c. Social Security tax: $6,621.60, Medicare tax: $513.30 d. Social Security tax: $66,216.00, Medicare tax: $5,133.00
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