# Curve Fitting

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Use this HTML code to display a screenshot with the words "Click to Run". Polinomios Análise de Erros Data PhET ten o soporte de e profesores como vostede.
 Original Sim and Translations

### Contidos

• Polinomios
• Análise de Erros
• Data

### Description

Drag data points and their error bars and watch the best-fit polynomial curve update instantly. You choose the type of fit: linear, quadratic, or cubic. The reduced chi-square statistic shows you when the fit is good. Or you can try to find the best fit by manually adjusting fit parameters.

### Obxectivos de Aprendizaxe

• Explain how the range and uncertainty and number of data points affect correlation coefficient and chi squared
• Describe how correlation coefficient and chi squared can be used to indicate how well a curve describes the data relationship
• Apply understanding of Curve Fitting to designing experiments

### Standards Alignment

#### Common Core - Math

HSS-ID.B.6
Represent data on two quantitative variables on a scatter plot, and describe how the variables are related.
HSS-ID.B.6a
Fit a function to the data; use functions fitted to data to solve problems in the context of the data. Use given functions or choose a function suggested by the context. Emphasize linear, quadratic, and exponential models.
HSS-ID.B.6b
Informally assess the fit of a function by plotting and analyzing residuals.
Version 1.0.0

### Teacher Tips

 A guía de profesores (pdf) contén consellos creados polo equipo PhET. ( PDF ).

### Teacher-Submitted Activities

Curve Fitting: How well does the curve describe the data? (Inquiry Based) Trish Loeblein, Mike Dubson U-Inicio
BAC
Lab Matemáticas
Química
Física
Concept questions for Physics using PhET (Inquiry Based) Trish Loeblein U-Inicio
BAC
MC Física
Algebra-based Physics Semester one lessons, clicker questions, and schedule in pdf (Inquiry Based) Trish Loeblein BAC
U-Inicio
Deb
Lab
Demo
Física
¿Qué tan bien la curva describe los datos? Loeblein y Dubson (traducción Diana López) BAC
U-Inicio
Guided
Remote
Deb
Matemáticas
Física
Alignment of PhET sims with NGSS Trish Loeblein updated by Diana López BAC
S.O.
Outro Química
Bioloxía
Física
Ciencias da Terra
SECUNDARIA: Alineación PhET con programas de la SEP México (2011 y 2017) Diana López S.O.
BAC
Outro Física
Matemáticas
Bioloxía
Química
PREPARATORIA: Alineación de PhET con programas de la DGB México (2017) Diana López BAC
U-Inicio
Outro Química
Matemáticas
Física
PRIMARIA: Alineación con programas de la SEP México (2011 y 2017) Diana López S.O.
11
Lab
Deb
Demo
Guided
Discuss
Física
Astronomía
Matemáticas
Química
Capacitor and Dielectric 2 Bassam Rashed Outro
U-Inicio
BAC
U-Av
Lab
Demo
Deb
Guided
Remote
Física
Estadística Andrés Gualberto Palomo Cuevas BAC Remote
Deb
Matemáticas

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Equipo de Deseño Biliotecas externas Agradecementos
• Michael Dubson (lead designer, original developer)
• Chris Malley (developer)
• Jonathan Olson (developer)
• Saurabh Totey (developer)
• Martin Veillette (developer)
• Trish Loeblein
• Ariel Paul
• Kathy Perkins
• almond-0.2.9.js
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• jquery-2.1.0.js
• katex-0.11.0-css-all.js
• katex-0.11.0.min.js
• lodash-4.17.4.js
• pegjs-0.7.0.js
• seedrandom-2.4.2.js
• text-2.0.12.js
• TextEncoderLite-3c9f6f0.js