Quadratic regression Calculator

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

Quadratic regression: y=A+Bx+Cx2
    1. (input by clicking each cell in the table below)
data 

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

    Quadratic regression
    [1-10] /102Disp-Num
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    [1]  2021/06/03 13:25   20 years old level / An engineer / Very /
    Purpose of use
    More accurate quadratic regression than excel for use in process control.
    Comment/Request
    It would be nice to be able to fit the curve, specifically through the origin. (y=Ax^2+Bx regression).
    [2]  2021/05/01 06:04   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    showed me a step by step way to do quadratic regression equations.
    [3]  2021/04/29 01:31   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Algebra II work regarding modelling situations with quadratics
    [4]  2021/04/26 19:34   Under 20 years old / Elementary school/ Junior high-school student / Very /
    Purpose of use
    algebra homework
    [5]  2021/04/21 16:32   Under 20 years old / High-school/ University/ Grad student / Not at All /
    Purpose of use
    looking for what y equals
    [6]  2021/03/04 02:35   Under 20 years old / An office worker / A public employee / Very /
    Purpose of use
    Determining line (or curve!) of best fit for Business Cards Prices
    Comment/Request
    All good, really. As long as the math is right, it's fine by me!
    [7]  2021/02/16 13:05   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    needed help with quadratic equations
    [8]  2021/02/13 23:39   20 years old level / High-school/ University/ Grad student / Very /
    Purpose of use
    Fitting data
    [9]  2021/02/04 01:09   Under 20 years old / High-school/ University/ Grad student / Very /
    Purpose of use
    Determine coefficients of a virial expansion quadratic equation by fitting data to function
    [10]  2020/12/01 21:37   30 years old level / An engineer / Very /
    Purpose of use
    Calculate arrow trajectories for archery.

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