Difference between revisions of "Página de pruebas"

Revision as of 01:59, 24 December 2020

The regression equation: $y=a+bx$

The slope is the amount of change in units of

y

for each unitchange in

x

.

@@ Line 1: / Line 1: @@
+===Simple Linear Regression===
+https://www.youtube.com/watch?v=nk2CQITm_eo&t=267s
+*'''1''' Use '''Least-squqres''' to fit a line to the data
+*'''2''' Clculate <math>R^2</math>
+*'''3''' Calculate a <math>p-value</math> for <math>R^2</math>
+<br />
+<br />
+<!-- [[File:SimpleLinearRegression.png|350px|thumb|center|]] -->
+[[File:SimpleLinearRegression2.png|600px|center|]]
+'''The regression equation:'''
+<math> y = a + bx </math>
+* Dependent variable: <math> y </math>:
+* Independent variable: <math> x </math>:
+* Slope: <math> b = r \frac{S_y}{S_x}</math>
+: The slope is the amount of change in units of <math>y</math> for each unitchange in <math>x</math>.
+* <math> y </math> intercept: <math> a = \bar{y} - b\bar{x} </math>:
+<br />