Scatterplots Lauren Goldenberg Stephen Goldsman Cassandra Raginsky.

Slides:

Advertisements

Similar presentations

1.5 Scatter Plots and Least Squares Lines

Advertisements

5.4 Correlation and Best-Fitting Lines

Exponential Decay M & M’s Math Lab.

Introduction Exponential equations in two variables are similar to linear equations in two variables in that there is an infinite number of solutions.

5-7: Scatter Plots & Lines of Best Fit. What is a scatter plot?  A graph in which two sets of data are plotted as ordered pairs  When looking at the.

Warm Up 1. Please have your homework and tracking sheet out and ready for me when I get to you.   a. Find the line of best fit for these data. _______________________.

Identify Linear, Quadratic, and Exponential Functions N Distinguish quadratic and exponential functions as nonlinear using a graph and/or a table.

Linear, Exponential, and Quadratic Functions. Write an equation for the following sequences.

Monday: Announcements Unit 5 Retest: Deadline is Friday at 8:35am. Must have test correction complete to retest and come to at least one tutorial session.

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.

EOC Practice #27 SPI EOC Practice #27 Using a scatterplot, determine if a linear relationship exists and describe the association between variables.

Solving Systems of Equations Graphically. Quadratic Equations/ Linear Equations  A quadratic equation is defined as an equation in which one or more.

SECTION 6.3 Exponential Growth and Decay. Warm-up As the x-values increase by 1, the y-values increase by 2.

Maximizing Volume March 23, Profit and Product Distribution... Why does cereal come in a rectangular prism and potato chips come in a bag?

Correlation with a Non - Linear Emphasis Day 2.  Correlation measures the strength of the linear association between 2 quantitative variables.  Before.

Math 2: Unit 6 Day 1 How do we use scatter plots, correlation, and linear regression?

5.1 Equations of Lines Equations of the form ax + by = c are called linear equations in two variables. x y 2 -2 This is the graph of the equation 2x +

CHEMISTRY PLAY!!! $100 PHYSICAL VS CHEMICAL Review: Equations of Lines Definitions EVIDENCE OF A CHEMICAL CHANGE Wild Card $100 $200 $300 $400 $500 $100.

Section 2.2 Lines. OBJECTIVE 1 Find the slope of the line containing the points (–1, 4) and (2, –3).

CHAPTER 38 Scatter Graphs. Correlation To see if there is a relationship between two sets of data we plot a SCATTER GRAPH. If there is some sort of relationship.

Evaluate each expression for the given value of x.

: Proving the Interior Angle Sum Theory. 2.

Do Now 12/3/09 Take out HW from last night. -Text p. 328, #3-6, 8-12 evens, 16 & 17 (4 graphs) Copy HW in planner. - Text p. 338, #4-14 evens, 18 & 20.

Sec 1.5 Scatter Plots and Least Squares Lines Come in & plot your height (x-axis) and shoe size (y-axis) on the graph. Add your coordinate point to the.

Common Core High School Mathematics: Transforming Instructional Practice for a New Era 1.1.

9.3 Graphing Quadratic Functions

Draw Scatter Plots and Best-Fitting Lines Section 2.6.

Investigating Scatter Plots Scatter plots – show correlations (relationships) between two different pieces of data.  dependent variable (y’s or range)

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,

Section 2-5 Continued Scatter Plots And Correlation.

Algebra 3 Lesson 1.9 Objective: SSBAT identify positive, negative or no correlation. SSBAT calculate the line of best fit using a graphing calculator.

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.

Objective: To write linear equations that model real-world data. To make predictions from linear models. Bell Ringer: Write 3 ways you used math over your.

13-4 The Sine Function Today’s Objective: I can graph the sine function.

9.1 - Correlation Correlation = relationship between 2 variables (x,y): x= independent or explanatory variable y= dependent or response variable Types.

Section 1-3: Graphing Data

Algebra 2 Fall Semester Exam Review Test Format Final Exam is all calculator 35 Questions All Multiple Choice.

SWBAT… solve quadratic equations Tues, 2/7 Agenda 1. Warm-up (15 min) 2. Solving quadratic equations (10 min) 3. Graphing calculator activity (10 min)

Scatterplots and Linear Regressions Unit 8. Warm – up!! As you walk in, please pick up your calculator and begin working on your warm – up! 1. Look at.

Correlation and Median-Median Line Statistics Test: Oct. 20 (Wednesday)

Using the Calculator to Graph Scatter Plots. Everything we just learned about Scatter Plots we will now do with the calculator. Plot points Plot points.

Finding the Equation of a Quadratic Function. You need your scatterplot notes! When we found the equation of a line of a set of points in a scatterplot,

Section 1.3 Scatter Plots and Correlation.  Graph a scatter plot and identify the data correlation.  Use a graphing calculator to find the correlation.

Lines of Best Fit When data show a correlation, you can estimate and draw a line of best fit that approximates a trend for a set of data and use it to.

Scatter Plots & Lines of Best Fit To graph and interpret pts on a scatter plot To draw & write equations of best fit lines.

Scatter Plots. Standard: 8.SP.1 I can construct and interpret scatterplots.

STATISTICS: USING SCATTER PLOTS CHAPTER 2 LESSON 5.

UNIT 8 Regression and Correlation. Correlation Correlation describes the relationship between two variables. EX: How much you study verse how well you.

Section 9-1 – Correlation A correlation is a relationship between two variables. The data can be represented by ordered pairs (x,y) where x is the independent.

Solving Systems of Equations by Graphing.  System of Equations- Two or more equations with the same variables  Consistent- A system of equations with.

7.1 – Cartesian Co-ordinate System & Linear Equations in Two Variables

Aim: How do we fit a regression line on a scatter plot?

Chance & Data: Statistics

Investigating Relationships

Solve Linear and Quadratic Systems Algebraically

2.4 Writing the Equation of a Line

Linear Equations Y X y = x + 2 X Y Y = 0 Y =1 Y = 2 Y = 3 Y = (0) + 2 Y = 2 1 Y = (1) + 2 Y = 3 2 Y = (2) + 2 Y = 4 X.

Correlation and Regression

Lesson 4.1 Bivariate Data Today, we will learn to …

2.4 Writing the Equation of a Line

8/29/12 Writing the Equation of a Line

two variables two sets of data

Residuals and Residual Plots

11A Correlation, 11B Measuring Correlation

7.1 Draw Scatter Plots & Best-Fitting Lines

Drawing Quadratic Graphs

Graphing Linear Equations

Solving a System of Linear and Quadratic Equations Algebraically

Chapter 8 Systems of Equations

2.4 Writing the Equation of a Line

Presentation transcript:

Scatterplots Lauren Goldenberg Stephen Goldsman Cassandra Raginsky

Correlations Positive Correlation: In a positive correlation, as the values of one of the variables increase, the values of the second variable also increase. Likewise, as the value of one of the variables decreases, the value of the other variable also decreases. Negative Correlation: In a negative correlation, as the values of one of the variables increase, the values of the second variable decrease. Likewise, as the value of one of the variables decreases, the value of the other variable increases. No Correlation: where a change in one set of data has no effect on the other set

Linear Regression Linear Regression is the relation between variables when the regression equation is linear: y = mx + b This is like the height and shoe size example we did in class

Quadratic Regression Quadratic Regression is a process by which the equation of a parabola of "best fit" is found from a set of data. This is like the chicken wire example from class.

Exponential Regression Exponential Regression can be used to find an equation that best fits the relationship between a group of random variables. It assists in drawing conclusion about a set of data.

Exponential Regression M&M EXPERIMENT

Directions 1)Pour all M&M’s onto the paper towel 2)Count how many of the 30 have the letter M face up 3)Subtract that number from the start, and write the total in an (x,y) ordered pair. For example, trial 1 may leave you with 17 M&M’s left. (1,17) 4)Eat the ones with an M, repeat until all are gone 5)Graph your results on the graph paper

Homework There was a survey done on 14 girl’s height and weight. What is the ling of best fit? And does it have a positive Correlation or a Negative Correlation or no Correlation? Make your window in the calculator be x-min:0 x-max:80 y-min:0 y-max: 200 HeightWeight

Works Cited "WordNet Search " WordNet Search N.p., n.d. Web. 10 Mar "Quadratic Regression." Quadratic Regression. N.p., n.d. Web. 10 Mar