The World Population Project


World Population
19001,618,280,000
19101,749,070,000
19201,892,923,000
19302,036,469,000
19402,180,615,000
19502,457,791,000
19602,906,633,000
19703,548,414,000
19804,297,414,000
19905,115,510,000
20006,040,919,000
20378,952,804,523

When I am 50 (in the year 2037) I estimate there will be 8,952,804,523 people in the world.

Best Fit Line:
Exponential Regresion... a*b^x
Equation: y = .01260287802562*1.0134868303151^x

TI-83 Info:
Window:
Xmin1800
Xmax2040
Xscl24
Ymin1,500,000,000
Ymax6,500,000,000
Yscl500,000,000


All Squashed Up

Steps:
1)Convert the number of square miles in Cuba to square feet.
2)Use the best-fitting equation to find the year when the population is closest to the number of square feet.
In the year 2940, there will be 160,587,642*10^15 and people will have less than one square foot of room each.

Cuba Population
YearPopulation
19505,784,797
19607,027,210
19708,542,746
19809,652,975
199010,544,798
200011,141,997
203711,596,677

When I am 50 (in the year 2037) I estimate there will be 11,596,677 people in the Cuba.

Best Fit Line:
Logistic... c/(1+ae^(-bx))
Equation: y = 12491143.872225/(1+(1.3115257879756*10^39)e^(-.04610433397462x))

Cuba Facts...
The total land mass of Cuba is 40,519 square miles, or 213,940,320 square feet. Because the best-fitting line is a logistic equation, the population can only approach, but never get to, a certain number. This number is well below the number the population would have to be for everyone to have only one square foot each (213,940,320).

TI-83 Info:
Window:
Xmin1940
Xmax2040
Xscl10
Ymin5,500,000
Ymax12,000,000
Yscl650,000


Links

6 Million Humans
U.S. Census Bureau - IDB Data Access
Encyclopaedia Britannica-Cuba
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©2000 Ben Cohn