Quadratic regression Calculator
Analyzes the data table by quadratic regression and draws the chart. | |||
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| 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] /63 | Disp-Num |   |
- Purpose of use
- Personal curiousity
- Comment/Request
- Give the formula to calculate R^2 in terms of Sxx, etc.
[1] 2019/04/21 05:35 Male / 60 years old level or over / An engineer / Very /
- Purpose of use
- Math homework
- Comment/Request
- Great quadratic regression formula.
[2] 2019/04/12 01:05 Female / Under 20 years old / High-school/ University/ Grad student / Very /
- Purpose of use
- Math homework
[3] 2019/04/10 10:08 Female / Under 20 years old / High-school/ University/ Grad student / Useful /
- Purpose of use
- math homework
- Comment/Request
- it would be very useful if the equation was ax^2+bx+c instead of a+bx+cx^2.
[4] 2019/04/09 08:28 Male / Under 20 years old / High-school/ University/ Grad student / Useful /
- Purpose of use
- Algebra 1 homework
- Comment/Request
- Add ability to make predictions from model.
[5] 2019/03/21 10:49 Female / Under 20 years old / Elementary school/ Junior high-school student / Useful /
- Purpose of use
- Algebra 1 homework
[6] 2019/03/19 08:11 Female / Under 20 years old / High-school/ University/ Grad student / A little /
- Purpose of use
- Pre-Calculus homework
- Comment/Request
- A+Bx+Cx² is not standard in anything I've seen, ax²+bx+c seems to be much more common
[7] 2019/03/15 23:54 Male / Under 20 years old / High-school/ University/ Grad student / Useful /
- Purpose of use
- Homework
- Comment/Request
- Make the results copy-pastable.
[8] 2019/03/08 10:18 Male / Under 20 years old / Elementary school/ Junior high-school student / Useful /
- Purpose of use
- Algebra 2 homework
- Comment/Request
- Have the data table of the graph available. Also, the formula is not one proper order according to powers.
[9] 2019/02/13 10:12 Female / Under 20 years old / High-school/ University/ Grad student / A little /
- Purpose of use
- Best quadratic fit from noisy Doppler data.
- Comment/Request
- Superb.
[10] 2018/11/30 02:33 Male / 60 years old level or over / A teacher / A researcher / Very /
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