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The Optional vs. The Necessary

Consider this table of data relating to the number of plastic surgery procedures and the number of cardiac surgeries each year:

Number each year19972003
Plastic surgeries721,0001,380,000
Cardiac surgeries 3,230,0003,550,000

Assuming growth in each row is linear, what are the two expected values for years 2010 and 2025?

  • Number of plastic surgery procedures?
  • Number of cardiac surgeries?

Assuming growth in each row is exponential, what are the two expected values for years 2010 and 2025?

  • Number of plastic surgery procedures?
  • Number of cardiac surgeries?

Source: American Society of Aesthetic Plastic Surgery & American Heart Association