Question

The table gives the number N (t), measured in thousands, of minimally"
invasive cosmetic surgery procedures performed in the United States for various years t.
              N(t) (thousands)
2000 5, 500
2002 4, 897
2004 7, 470
2006 9, 138
2008 10, 89
2010 11, 561
2012 13, 035

Source: American Society of Plastic Surgeons
(a) What is the meaning of N' (t)? What are its units?
(b) Construct a table of estimated values for N' (t) .
(c) Graph N and N'.
(d) How would it be possible to get more accurate values for N'(t)?

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