Life expectancyThe following table gives the years of life expected at birth for blacks and whites…
Life expectancy
The following table gives the years of life expected at birth for blacks and whites born in the United States in selected years from 1920 to 2006.
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blacks |
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Males Females |
Males Females |
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1920 |
54.4 |
55.6 |
45.5 |
45.2 |
1940 |
62.1 |
66.6 |
51.5 |
54.9 |
1960 |
67.4 |
74.1 |
61.1 |
67.4 |
1980 |
70.7 |
78.1 |
63.8 |
72.5 |
2000 |
74.9 |
80.1 |
68.3 |
75.2 |
2006 |
75.7 |
80.6 |
69.7 |
76.5 |
Make a matrix A containing the information for whites and a matrix B for blacks. Use these to find how many more years whites in each category are expected to live than blacks.