7.1 Draw Scatter Plots & Best-Fitting Lines

Slides:



Advertisements
Similar presentations
5.4 Correlation and Best-Fitting Lines
Advertisements

Lesson 5.7- Statistics: Scatter Plots and Lines of Fit, pg. 298 Objectives: To interpret points on a scatter plot. To write equations for lines of fit.
FACTOR THE FOLLOWING: Opener. 2-5 Scatter Plots and Lines of Regression 1. Bivariate Data – data with two variables 2. Scatter Plot – graph of bivariate.
7.1 Draw Scatter Plots & Best-Fitting Lines 7.1 HW Quiz: Friday 7.1, 7.2 Quiz: TBA 7.1, 7.2, 7.7 Test: Sept. 22 Make-up work needs to be made up by Monday.
GOALS: WRITE A LINEAR EQUATION THAT APPROXIMATES A SET OF DATA POINTS DETERMINE IF THERE IS A POSITIVE, NEGATIVE OR NO CORRELATION BETWEEN DATA POINTS.
DESCRIBE A SCATTER WITH A NEGATIVE CORRELATION QUESTION OF THE DAY.
Warm up 8/26 Write the equation of the transformation you see Potatoes cost a chef $18 a box, and carrots cost $12 a box. The chef want to spend.
1 What you will learn today 1. New vocabulary 2. How to determine if data points are related 3. How to develop a linear regression equation 4. How to graph.
Holt Algebra Curve Fitting with Linear Models 2-7 Curve Fitting with Linear Models Holt Algebra 2 Lesson Presentation Lesson Presentation.
Linear Regression. Determine if there is a linear correlation between horsepower and fuel consumption for these five vehicles by creating a scatter plot.
Draw Scatter Plots and Best-Fitting Lines Section 2.6.
Scatter Diagrams Objective: Draw and interpret scatter diagrams. Distinguish between linear and nonlinear relations. Use a graphing utility to find the.
Correlation and Regression. Section 9.1  Correlation is a relationship between 2 variables.  Data is often represented by ordered pairs (x, y) and.
April 1 st, Bellringer-April 1 st, 2015 Video Link Worksheet Link
Section 2.6 – Draw Scatter Plots and Best Fitting Lines A scatterplot is a graph of a set of data pairs (x, y). If y tends to increase as x increases,
Statistics: Scatter Plots and Lines of Fit
* SCATTER PLOT – GRAPH WITH MANY ORDERS PAIRS * LINE OF BEST FIT – LINE DRAWN THROUGH DATA THAT BEST REPRESENTS IT.
5.4 Line of Best Fit Given the following scatter plots, draw in your line of best fit and classify the type of relationship: Strong Positive Linear Strong.
9.1B – Computing the Correlation Coefficient by Hand
2.5 Using Linear Models A scatter plot is a graph that relates two sets of data by plotting the data as ordered pairs. You can use a scatter plot to determine.
Sec. 2-4: Using Linear Models. Scatter Plots 1.Dependent Variable: The variable whose value DEPENDS on another’s value. (y) 2.Independent Variable: The.
2.5 Using Linear Models P Scatter Plot: graph that relates 2 sets of data by plotting the ordered pairs. Correlation: strength of the relationship.
2.5 CORRELATION AND BEST-FITTING LINES. IN THIS LESSON YOU WILL : Use a scatter plot to identify the correlation shown by a set of data. Approximate the.
7.1 Draw Scatter Plots and Best Fitting Lines Pg. 255 Notetaking Guide Pg. 255 Notetaking Guide.
Materials needed: journal, pencil, calculator and homework.
Correlation and Median-Median Line Statistics Test: Oct. 20 (Wednesday)
Welcome to Algebra 2! Get out your homework Get out catalogs Get out writing utensils Put bags on the floor Be quiet!!! 3/2/ : Curve Fitting with.
Chapter – Scatter Plots and Correlation. Scatter plot – graph of a set of data pairs (x, y) Correlation – relationship between the ordered pairs.
Scatter Plots & Lines of Best Fit To graph and interpret pts on a scatter plot To draw & write equations of best fit lines.
4-5 Introduction to Scatter Plots 13 April Agenda What is a Scatter Plot? Correlation of Scatter Plots Line of Fit.
STATISTICS: USING SCATTER PLOTS CHAPTER 2 LESSON 5.
1.6 Modeling Real-World Data with Linear Functions Objectives Draw and analyze scatter plots. Write a predication equation and draw best-fit lines. Use.
Scatter Plots and Equations of Lines Chapter 6 Section 7.
Scatter Plots and Lines of Fit
4-5 Scatter Plots and Lines of Best Fit
Lesson 2.4 Using Linear Models.
CORRELATION & LINEAR REGRESSION
CHAPTER 10 Correlation and Regression (Objectives)
Investigating Relationships
2.5 Correlation and Best-Fitting Lines
Introduction to Scatter Plots
4.4 Scatter Plots.
2. Find the equation of line of regression
2.6 Draw Scatter Plots and Best-Fitting Lines
1.3 Modeling with Linear Functions Exploration 1 & 2
Lesson 5.3 How do you write linear equations in point-slope form?
Correlation and Regression
Notes Over 2.5 Positive Correlation Determining Correlation x
Scatter Plots and Best-Fit Lines
Linear Scatter Plots S-ID.6, S-ID.7, S-ID.8.
Day 37 Beginner line of the best fit
Section 1.4 Curve Fitting with Linear Models
Scatter Plots and Equations of Lines
High School – Pre-Algebra - Unit 8
4-5 Scatter Plots and Lines of Best Fit
11C Line of Best Fit By Eye, 11D Linear Regression
2.6 Draw Scatter plots & Best Fitting Lines
Objective: Interpret Scatterplots & Use them to Make Predictions.
Unit 2 Quantitative Interpretation of Correlation
Objectives Vocabulary
7.1 Draw Scatter Plots and Best Fitting Lines
2.5 Correlation and Best-Fitting Lines
2.3 Represent Relations & Functions p. 33
Residuals (resids).
Scatterplots Regression, Residuals.
Draw Scatter Plots and Best-Fitting Lines
Dr. Fowler  AFM  Unit 8-5 Linear Correlation
Relations P.O.D. #37 March
Scatter Plots Learning Goals
Presentation transcript:

7.1 Draw Scatter Plots & Best-Fitting Lines

Vocabulary Scatter plot: a graph of a set of data pairs (___, ___) Positive correlation: y tends to ________ as x ________ Negative correlation: y tends to ________ as x ________

More Vocabulary r x y x y x y x y x y -1 1 Correlation coefficient: (r), a number from ___ to ___ that measures how well a line fits a set of data pairs (x, y). x y x y x y x y x y r -1 1

If “r” is… -.956 .899 1 -1 0.5 -0.6

Mathematical Formula for Computing “r” Thank goodness your calc can do this!

More Vocabulary Best-fitting line: line that lies as close as possible to all the data points Linear regression: a method for finding the equation of the best-fitting line, or regression, which expresses the linear relationship between the independent variable x and the dependent variable, y, e.g. y = _________

Guided Practice for Ex.1, p. 248 1) 2)

Example 2: Approximate the best-fitting line Scatterplot Best-Fit Line EQ Best-Fit Line Graph See Handout

Start Homework See Agenda

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com Inc. All rights reserved.