Math 8C Unit 3 – Statistics

Slides:

Advertisements

Similar presentations

5.4 Correlation and Best-Fitting Lines

Advertisements

I can plot coordinates. Given the equation of a straight line, I can complete a table of values. From a table of values, I can draw a straight line. Given.

Bivariate Data & Scatter Plots Learn to take bivariate data to create a scatter plot for the purpose of deriving meaning from the data.

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.

Holt CA Course Scatter Plots Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

5-7 Scatter Plots and Trend Lines. Scatter Plot: A graph that relates two different sets of data by displaying them as ordered pairs.

Section 2.5 – Linear Models. Essential Understanding Sometimes it is possible to model data from a real-world situation with a linear equation. You can.

Modeling Real World Data: Scatter Plots. Key Topics Bivariate Data: data that contains two variables Scatter Plot: a set of bivariate data graphed as.

Bivariate data are used to explore the relationship between 2 variables. Bivariate Data involves 2 variables. Scatter plots are used to graph bivariate.

Unit 1 – First-Degree Equations and Inequalities Chapter 2 – Linear Relations and Functions 2.5 – Statistics: Using Scatter Plots.

Chapter 2 – Linear Equations and Functions

April 1 st, Bellringer-April 1 st, 2015 Video Link Worksheet Link

Scatter Plots and Trend Lines

Grade Reports Feb. 2 nd, SID.6: Line of Best Fit Feb. 2 nd, 2015.

SECTIONS B Chapter 2. Objectives To draw scatter plots. To find and use prediction equations. Using a graphing calculator to graph lines of regression.

Math 8C Unit 3 – Statistics. Unit 3 – Day 1 (U3D1) Standards Addressed: – Create a scatter plot and label any trends and clustering. – Explain why a linear.

Linear Best Fit Models Learn to identify patterns in scatter plots, and informally fit and use a linear model to solve problems and make predictions as.

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.

4.4 – SCATTER PLOTS AND LINES OF FIT Today’s learning goal is that students will be able to: interpret scatter plots, identify correlations between data.

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.

1.5 Scatter Plots & Line of Best Fit. Scatter Plots A scatter plot is a graph that shows the relationship between two sets of data. In a scatter plot,

Unit 4 Part B Concept: Best fit Line EQ: How do we create a line of best fit to represent data? Vocabulary: R – correlation coefficient y = mx + b slope.

Lesson 6-7 Scatter Plots and Lines of Best Fit. Scatter Plots A scatter plot is a graph that relates two different sets of data by plotting the data as.

Introduction The relationship between two variables can be estimated using a function. The equation can be used to estimate values that are not in the.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Warm up… Page 297 practice quiz at the bottom of the page.

Day 17 – September 20th and 21st Objective:

4-5 Scatter Plots and Lines of Best Fit

Objectives Fit scatter plot data using linear models with and without technology. Use linear models to make predictions.

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” and “Lines of Fit”

Lines of Best Fit #1 When data show a correlation, you can estimate and draw ____________________ that approximates a trend for a set of data and use it.

Population (millions)

Writing About Math Complete 1-5 Silently

Lesson 2.4 Using Linear Models.

*Milestones review due Fri 3/23

RELATIONSHIPS Vocabulary scatter plot correlation

5-7 Scatter Plots and Trend Lines

Scatter Plots and Equations of Lines

2.5 Correlation and Best-Fitting Lines

2.6 Draw Scatter Plots and Best-Fitting Lines

1.3 Modeling with Linear Functions Exploration 1 & 2

Scatter Plots - Line of Best Fit

Lesson 5.6 Fit a Line to Data

Notes Over 2.5 Positive Correlation Determining Correlation x

Lesson 4.5 Functions Fitted to Data

Statistics and Probability-Part 9

Learning Objectives You should be able to: Vocabulary

You need: Notebook paper Graph paper Pencil Workbook (back shelf)

Section 1.4 Curve Fitting with Linear Models

Scatter Plots and Equations of Lines

Data Analysis and Statistics

Scatter Plots and Least-Squares Lines

7.1 Draw Scatter Plots & Best-Fitting Lines

Common Core Standard 8.SP.A.1

2.6 Draw Scatter plots & Best Fitting Lines

A. Draw a trend line. It will be easier to write an equation

Solutions of Linear Functions

Objectives Create and interpret scatter plots.

Processing and Representing Data

2.5 Correlation and Best-Fitting Lines

Draw Scatter Plots and Best-Fitting Lines

Scatter Plots Learning Goals

Scatter Plots That was easy Year # of Applications

Creating and interpreting scatter plots

Graphs in Science p. 34.

Presentation transcript:

Math 8C Unit 3 – Statistics

Unit 3 – Day 1 (U3D1) Standards Addressed: Create a scatter plot and label any trends and clustering. Explain why a linear model may fit a scatter plot and create a line of best fit for the data.

U3D1 Scatter Plots Scatter plots can be used to display trends in sets of data.

U3D1 Vocabulary A scatter plot is a graph that shows the relationship between data sets using ordered pairs in a coordinate plane.

Vocabulary What is a line of best fit? U3D1 Vocabulary What is a line of best fit? A line of best fit is a line drawn on a scatter plot that is close to most of the data points. The line models the trend (correlation) of the data. It can be used to estimate data on a graph or make predictions.

Vocabulary What is correlation? U3D1 Vocabulary What is correlation? A correlation, or trend, is how two sets of data are related. It’s the co- relation of the data.

Example Describe the trend and draw a line of best fit if possible. U3D1 Example Describe the trend and draw a line of best fit if possible. Positive Correlation

Example Describe the trend and draw a line of best fit if possible. No U3D1 Example Describe the trend and draw a line of best fit if possible. No Correlation

Example Describe the trend and draw a line of best fit if possible. U3D1 Example Describe the trend and draw a line of best fit if possible. Negative Correlation

U3D1 Example! The local ice cream shop keeps track of how much ice cream they sell versus the temperature on that day. Here’s what they found: What do you think this data would look like on a graph?

U3D1 Example! The local ice cream shop keeps track of how much ice cream they sell versus the temperature on that day. Here’s what they found: Correlation? Line of best fit? Positive

In Class Practice U3D1 - ICP

Unit 3 – Day 2 Standards Addressed: Create a scatter plot and describe any trends. Explain why a linear model may fit a scatter plot and create a line of best fit for the data Determine the equation of the line of best fit.

The table below shows your measurements. U3D2 You have been working on a science project for 8 months. Each month you have measured and recorded the length of a baby alligator in a table. The table below shows your measurements.

Graph the data in the table. U3D2 Use the following steps to predict the baby alligator’s length next September. Graph the data in the table. Draw the straight line that you think best approximates the points (line of best fit) Write an equation of the line you drew. Use the equation you wrote to predict the baby alligator’s length next September.