Use the world population and land area table reproduced. Round answers to the nearest tenth or tenth of a percent.
$$\begin{array}{lccccc}
\begin{array}{l}
\text { Continent or } \\
\text { Region }
\end{array} & \begin{array}{c}
\text { Land Area } \\
\mathbf{( 1 , 0 0 0 \mathrm { mi } ^ { 2 } )}
\end{array} & \begin{array}{l}
\text { \% of } \\
\text { Earth }
\end{array} & \begin{array}{c}
\text { Population } \\
1900
\end{array} & \begin{array}{c}
\text { Population } \\
1950
\end{array} & \begin{array}{c}
\text { Population } \\
2000
\end{array} \\
\hline \text { North America } & 9,400 & 16.2 & 106,000,000 & 221,000,000 & 305,000,000 \\
\text { South America } & 6,900 & 11.9 & 38,000,000 & 111,000,000 & 515,000,000 \\
\text { Europe } & 3,800 & 6.6 & 400,000,000 & 392,000,000 & 510,000,000 \\
\begin{array}{l}
\text { Asia (including } \\
\text { Russia) }
\end{array} & 17,400 & 30.1 & 932,000,000 & 1,591,000,000 & 4,028,000,000 \\
\text { Africa } & 11,700 & 20.2 & 118,000,000 & 229,000,000 & 889,000,000 \\
\begin{array}{l}
\text { Oceana (includ- } \\
\text { ing Australia) }
\end{array} & 3,300 & 5.7 & 6,000,000 & 12,000,000 & 32,000,000 \\
\text { Antarctica } & 5,400 & 9.3 & \text { Uninhabited } & - & - \\
\text { World total } & 57,900 & & 1,600,000,000 & 2,556,000,000 & 6,279,000,000
\end{array}$$
(a) What was the population in North America in $1950 ?$
(b) What is the total land area in North America as
a percent of Earth?
Data Analysis and Statistics
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