Inverse regression Calculator

Analyzes the data table by inverse regression and draws the chart.

 Inverse regression: $y=A+{\large \frac{B}{x}}$

 （input by clicking each cell in the table below） data 6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digit
 Guidelines for interpreting 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$\normal\ Inverse\ regression\vspace{10}\\(1)\ mean:\ \bar{x^{\tiny -1}}={\large \frac{{\small \sum}{x_i^{\tiny -1}}}{n}},\hspace{10}\bar{y}={\large \frac{{\small \sum}{y_i}}{n}}\\[10](2)\ trend\ line:\ y=A+{\large \frac{B}{x}},\hspace{10} B={\large\frac{Sxy}{Sxx}},\hspace{10} A=\bar{y}-B\bar{x^{\tiny -1}}\\[10]\\(3)\ correlation\ coefficient:\ r=\frac{\normal S_{xy}}{\normal sqrt{S_{xx}}sqrt{S_{yy}}}\\\hspace{20}S_{xx}={\large \frac{{\small \sum}(x_i^{\tiny -1}-\bar{x^{\tiny -1}})^2}{n}}={\large \frac{{\small \sum} (x_i^{\tiny -1})^2}{n}}-\bar{x^{\tiny -1}}^2\\\hspace{20}S_{yy}={\large \frac{{\small \sum}(y_i-\bar{y})^2}{n}}={\large \frac{{\small \sum} y_i^2}{n}}-\bar{y}^2\\\hspace{20}S_{xy}={\large \frac{{\small \sum}(x_i^{\tiny -1}-\bar{x^{\tiny -1}})(y_i-\bar{y})}{n}}={\large \frac{{\small \sum} x_i^{\tiny -1} y_i}{n}}-\bar{x^{\tiny -1}}\bar{y}\\$

Inverse regression
 [1-3] /3 Disp-Num5103050100200
[1]  2018/10/05 04:58   Female / Under 20 years old / High-school/ University/ Grad student / Useful /
Purpose of use
comleating my maths work
[2]  2018/05/22 09:01   Female / 20 years old level / An office worker / A public employee / Very /
Purpose of use
calculations for fun/personal use
[3]  2016/10/27 01:44   Male / 30 years old level / An office worker / A public employee / Very /
Purpose of use
Self-study.
Comment/Request
It might be better if the constant can be entered if it is given by the set. Although, that might be too much to ask since it can be calculated in other ways anyway; and the calculator is working awesomely. Excellent!

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