Table 7. Correlation coefficient and standard deviation.
| Equation | Correlation coefficient | Standard deviation |
| Equation 3 | 0.72 | 0.165 |
| Equation 4 | 0.36 | 0.221 |
| Equation 5 | 0.58 | 0.193 |
| Equation 6 | 0.34 | 0.224 |
| Equation 7 | 0.79 | 0.144 |
| Equation 8 | 0.59 | 0.191 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.