Use technology to determine the correlation coefficient, rounded to two decimal places, between percentage of people in a country who are literate and the percentage who are undernourished.
| Country | % Who Are Literate (x) | % Who Are Undernourished (y) |
|---|---|---|
| Cuba | 100 | 2 |
| Egypt | 71 | 4 |
| Ethiopia | 36 | 46 |
| Grenada | 96 | 7 |
| Italy | 98 | 2 |
| Jamaica | 80 | 9 |
| Jordan | 91 | 6 |
| Pakistan | 50 | 24 |
| Russia | 99 | 3 |
| Togo | 53 | 24 |
| Uganda | 67 | 19 |
Problem #38:
Use the data above to solve these exercises:
- Use technology to determine the correlation coefficient, rounded to two decimal places, between percentage of people in a country who are literate and the percentage who are undernourished.
- Use technology to find the equation of the regression line for the percentage who are literate and the percentage who are undernourished. Round “m” and “b” to two decimal places.
- Use technology to determine the percentage of people, to the nearest percent, can we anticipate are undernourished in a country where 60% of the people are literate?
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