Unit 1 Scatterplots and Line of Best Fit.Notebook November 06, 2017
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Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Line of Best Fit A line that comes closest to all the points on a scatter plot. Our goal when drawing our line of best fit is to have about the same number of points on top as there are on the bottom Trend line (line of best fit) a line that closely fits the data points in a scatter plot, used to make predictions 1 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Using Line of Best Fit to make predictions: 1. Determine if the information given is part of the independent or dependent variable. 2. Locate that information on the graph. 3. Follow that point to the line to determine the corresponding value. Predict the number of runs the softball team would score if they had six hits. 2 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 600 575 550 525 500 475 450 425 Calories 400 375 350 325 300 275 250 2 4 20 6 8 10 12 14 16 18 22 24 26 28 30 32 Fat 3 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Making an equation for our line of best fit... Step 1: Make a scatter plot and draw a trend line Step 2: Pick 2 points on the line you drew Step 3: Make sure your line crosses the yaxis Step 4: Write an equation for the line m = y2 y1 y=mx + b x2 x1 Celebrity Scatter Plot 4 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Copy this table in your notes. There will be 20 people. Famous Estimated Actual Person Age Age 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Estimating Ages of Famous Personalities Task: You will be seeing photos of famous people. As you see the photos, record the names or initials of each individual and your best estimate as to the person's age. If you do not know the person, take your best guess as to the age from observing the photo. I will then give you their actual ages and you will create and analyze a scatterplot of the information. Ready.... 5 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Taylor Lautner Miley Cyrus 6 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Barack Obama Lady Gaga 7 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Shia LeBeouf Kristen Stewart 8 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Jake Gyllenhaal Kim Kardashian 9 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Owen Wilson Nick Jonas 10 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Pauly Perette Justin Bieber 11 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Jennifer Lopez Ashton Kutcher 12 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Leonardo DiCaprio Jennifer Aniston 13 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Robert Pattinson Selena Gomez 14 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 Jaden Smith Kirsten Dunst 15 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 1. Based off of the data we collected, can we write a linear regression equation? 2. In your equation, what does the x represent and what does they represent? 3. Use your equation to predict the actual age of a person who you estimated to be 30. Show your work. 4. If someone's actual age was 40, what would you have estimated their age to be? Explain. 16 Unit 1_Scatterplots and Line of Best Fit.notebook November 06, 2017 17 Attachments Scatterplot Assessment Jeopardy Review.notebook.