Frequency-Based Regression Analysis (Integrated Graph)
The program performs regression analysis on the entered frequency distribution table using the selected curve regression method and plots a graph. It processes multiple independent data sets and displays them as a single integrated graph.
Interpreting the correlation coefficient r
0.7＜|r|≦1: strong correlation
0.4＜|r|＜0.7: moderate correlation
0.2＜|r|＜0.4: weak correlation
0≦|r|＜0.2: no correlation
0.7＜|r|≦1: strong correlation
0.4＜|r|＜0.7: moderate correlation
0.2＜|r|＜0.4: weak correlation
0≦|r|＜0.2: no correlation
| \(\normalsize\ Regression\\ (1)\ Linear:\hspace{75px} y=A+Bx\\ (2)\ Logarithmic:\hspace{30px} y=A+B\ln (x)\\ (3)\ e-Exponential:\hspace{10px} y=Ae^{Bx}\\ (4)\ ab-Exponential:\ y=AB^{x}\\ (5)\ Power:\hspace{78px} y=Ax^{B}\\ (6)\ Inverse:\hspace{73px} y=A+{\frac{B}{x}}\\ (7)\ Quadratic:\hspace{50px} y=A+Bx+Cx^2\\ \) |
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