# The World Population Project

World Population

1900 | 1,618,280,000 |

1910 | 1,749,070,000 |

1920 | 1,892,923,000 |

1930 | 2,036,469,000 |

1940 | 2,180,615,000 |

1950 | 2,457,791,000 |

1960 | 2,906,633,000 |

1970 | 3,548,414,000 |

1980 | 4,297,414,000 |

1990 | 5,115,510,000 |

2000 | 6,040,919,000 |

2037 | 8,952,804,523 |

**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:

Xmin | 1800 |

Xmax | 2040 |

Xscl | 24 |

Ymin | 1,500,000,000 |

Ymax | 6,500,000,000 |

Yscl | 500,000,000 |

## 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

Year | Population |

1950 | 5,784,797 |

1960 | 7,027,210 |

1970 | 8,542,746 |

1980 | 9,652,975 |

1990 | 10,544,798 |

2000 | 11,141,997 |

2037 | 11,596,677 |

**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:

Xmin | 1940 |

Xmax | 2040 |

Xscl | 10 |

Ymin | 5,500,000 |

Ymax | 12,000,000 |

Yscl | 650,000 |

### Links

6 Million Humans

U.S. Census Bureau - IDB Data Access

Encyclopaedia Britannica-Cuba

Metafind...