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Test Your Guess

Test Your Guess. Guess the Ages. Guess the ages of the following famous people. Quinten Tarantino Michael Phelps Sean Connery Mike Vick Johnny Depp Barack Obama Denzel Washington Steven Spielberg Mia Hamm Beyonce. Guess the ages of the following famous people. Nicolas Cage

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Test Your Guess

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  1. Test Your Guess Guess the Ages

  2. Guess the ages of the following famous people • Quinten Tarantino • Michael Phelps • Sean Connery • Mike Vick • Johnny Depp • Barack Obama • Denzel Washington • Steven Spielberg • Mia Hamm • Beyonce

  3. Guess the ages of the following famous people • Nicolas Cage • Derek Jeter • J.K. Rowling • Al Pacino • Joe Paterno • Ben Roethlisberger • O.J. Simpson • Will Smith • Maria Sharapova • Maynard James Keenan

  4. Now I will reveal the actual ages…

  5. Here are their real ages… • Quinten Tarantino 45 • Michael Phelps 23 • Sean Connery 78 • Mike Vick 28 • Johnny Depp 45 • Barack Obama 47 • Denzel Washington 53 • Steven Spielberg 61 • Mia Hamm 36 • Beyonce 27

  6. Here are their real ages… • Nicolas Cage 44 • Derek Jeter 34 • J.K. Rowling 43 • Al Pacino 68 • Joe Paterno 81 • Ben Roethlisberger 26 • O.J. Simpson 61 • Will Smith 40 • Maria Sharapova 21 • Maynard James Keenan 44

  7. Using your data… • Plot the actual (x) vs. your guesses (y) on a scatterplot • If you had guessed perfectly, what would have been the equation of your ‘least-squares line of best fit’? • Calculate the line of best fit for your data • What is the response variable? • What is the explanatory variable? • What does your model predict? • Write the equation of the line in context. • What was your correlation? Interpret the value. • What was your R2? Interpret the value. • Look at your residuals [y – (y-hat)]. How well did you guess? • Russell Crowe is 44—Using your equation, what would you have guessed for his age (interpolation)?

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