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Solve Multiple regression using Casio fx-570/991EX (ClassWiz) calculator

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Correlation coefficient and multiple regression (Casio fx-570EX).
How to form least squares regression line for a two-factor multiple regression using Casio fx-991EX calculator?
How to obtain the coefficient of determination (R-squared) of multiple regression using Casio ClassWiz scientific calculator?
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Опубликовано:

28 ноя 2023

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Комментарии : 8

@itzJee1 5 месяцев назад

It's a very complex one to solve on calc but shown easily thank you for the information 😊

@ahsing_math 5 месяцев назад

My pleasure. Thanks for watching and have a nice day.

@rngaming2400 3 месяца назад

We do as : For Equation: a+b1x1+b2x2....we develop €Y=na+b1€x1+b2€x2 €x1y= a€x1+b1€x1²+b2€x1x2 €x2y= a€x2+b1€x1x2+b2€x2² (All the value from calculator) solve these 3 eqn from calculator to get A,b1 and b2.

@ahsing_math 3 месяца назад

So, which method do you prefer?

@jaelowkey6113 8 месяцев назад

Is sum of xy not equal to sum of XY? Why do you need to substract sum of XY with sum of X * sum of Y / n?

@ahsing_math 8 месяцев назад

Hi, Jae. As mentioned at 0:17, those represent sums of squares. Different books might use varying symbols or notations, but the underlying formulas remain consistent. For instance, some books use SS(XY) with XY as a subscript. While the symbols may differ, it's crucial to focus on the shared formulas-they are the essence of the concept. Thanks for watching and have a nice day.

@laukiknibre5519 5 месяцев назад

sir do it on 991 es plus

@ahsing_math 5 месяцев назад

Hi there! Here's the video you requested: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-OdToFRnUOKA.html. I hope it's not too late-I had to renew my subscription before recording it. Hope this video helps you. Thanks for watching, and have a great day!