Homework Help is Here – Start Your Trial Now!
Math
Statistics
10. Delete your line of fit by clicking the "X" to the right of it (see pic to the right). 12. Enter this in a new row under the "Age Guessing Table." (see pic), and you should see a new line appear on your scatter plot. ~ 11. Someone who is perfect at guessing ages and guessed every celebrity exactly correct would create the perfectly straight line y = X. Why? Think about what y & x represent in terms of actual ages and guessed ages. ~ y=d --OPMAY

10. Delete your line of fit by clicking the "X" to the right of it (see pic to the right). 12. Enter this in a new row under the "Age Guessing Table." (see pic), and you should see a new line appear on your scatter plot. ~ 11. Someone who is perfect at guessing ages and guessed every celebrity exactly correct would create the perfectly straight line y = X. Why? Think about what y & x represent in terms of actual ages and guessed ages. ~ y=d --OPMAY

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Hello I'm reposting my sub parts on scatterplots hopefully this information may help you solve the last questions which are questions 10-14 (finished the first couple ) Here are the ordered pairs to help answer the questions Actual Ages Guesses 69 60 41 23 47 38 59 30 43 37 42 47 42 30 38 30 76 80 33 30 68 50 85 87 36 31 61 45 53 47 38 31 34 58 50 44 61 45 53 47 38 31 34 58 50 44 45 35 4. Positive correlation 5. R is close to 0.5 6. Use Desmos to calculate the numbers into a scatter plot 7. Answered 8. Answered 9. Answered 10-14 blank. Review images below to view the blank questions and the answered ones to better guide your understanding ! Thank you
Celebrity Scatter Plots Open up an internet browser and go to the following URL: http://bit.ly/2e4wt6S 2. On the left side of the screen, find the tab that says "Age Guessing Table." Click under the x column and type in your ACTUAL AGES. Under the y column, enter your GUESSES. Everyone should have the same x column (actual ages), but your y column (guesses) will look different from your neighbor. See the picture to the right. 1 3. As you type in pairs of numbers in the x and y columns, dots should start appearing in your graph. When you are finished, you should have a total of 19 dots in your scatterplot. . 4. Take a look at your scatter plot. Does it have a positive, negative, or no correlation (r)? How do you know? . Let's find your line of best fit. Click the "X" to the right of "Trend Line" (see picture), and it will disappear (see pic to the right). Go back to the top of your "Age Guessing Table." Click next to the x and y in the columns, and add a 1, after the x and y (see pic to the right). . Positive/Negative/No (circle one) correlation because Scalitay plot Is Arransed IN A upward Thend from left 70 Night 5. Looking at your scatterplot, do you think r is close to -1, -0.5, 0, 0.5, or 1? How do you know? - is close to -1/-0.5/0/05/1 (circle one) because Iti rices a Medreite : I Click a new row under the table and type exactly: y1 ~ mx1 + b. Note the can be found by clicking the "ABC" button on the keyboard that appears, and then selecting it (see pictures below) 0 S > 2 6 2 y. -mx. + b a 2 d Trend Line 4₁ y=my + b m=1 Actual Ages 1 Guesses X1 O 65 37 43 y 60 40 32
Transcribed Image Text:Celebrity Scatter Plots Open up an internet browser and go to the following URL: http://bit.ly/2e4wt6S 2. On the left side of the screen, find the tab that says "Age Guessing Table." Click under the x column and type in your ACTUAL AGES. Under the y column, enter your GUESSES. Everyone should have the same x column (actual ages), but your y column (guesses) will look different from your neighbor. See the picture to the right. 1 3. As you type in pairs of numbers in the x and y columns, dots should start appearing in your graph. When you are finished, you should have a total of 19 dots in your scatterplot. . 4. Take a look at your scatter plot. Does it have a positive, negative, or no correlation (r)? How do you know? . Let's find your line of best fit. Click the "X" to the right of "Trend Line" (see picture), and it will disappear (see pic to the right). Go back to the top of your "Age Guessing Table." Click next to the x and y in the columns, and add a 1, after the x and y (see pic to the right). . Positive/Negative/No (circle one) correlation because Scalitay plot Is Arransed IN A upward Thend from left 70 Night 5. Looking at your scatterplot, do you think r is close to -1, -0.5, 0, 0.5, or 1? How do you know? - is close to -1/-0.5/0/05/1 (circle one) because Iti rices a Medreite : I Click a new row under the table and type exactly: y1 ~ mx1 + b. Note the can be found by clicking the "ABC" button on the keyboard that appears, and then selecting it (see pictures below) 0 S > 2 6 2 y. -mx. + b a 2 d Trend Line 4₁ y=my + b m=1 Actual Ages 1 Guesses X1 O 65 37 43 y 60 40 32
7. You should see a bunch of numbers similar to, but not the same as, the picture to the right, as well as a new line of fit on your scatterplot. This is the BEST line of fit possible! Write down YOUR values for r, m, b (round to 2 decimals), and the equation for your best line of fit in y= mx + b form. = 0.698 r= F₁ -mx₂ + 8 N7-0.9009 <-- 0.9492 0-176 b=50391 8. Look back at #5. What did you guess your correlation (r) was?0.5 correlation (r) value, was it close to your guess from #5? NO --0978224 12. Enter this in a new row under the "Age Guessing Table." (see pic), and you should see a new line appear on your scatter plot. 10. Delete your line of fit by clicking the "X" to the right of it (see pic to the right). 9. Your correlation (r) tells you how consistent your guessing was. A correlation (r) close to O means you are very inconsistent, but a correlation (r) close to 1 means you're very consistent! How would you rate your consistency? In The Midde, marare consistency 3--101319 y = 0,776 x+5₂391 Now that you know the real ~ y=d 11. Someone who is perfect at guessing ages and guessed every celebrity exactly correct would create the perfectly straight line y = X. Why? Think about what y & x represent in terms of actual ages and guessed ages. ~ 7000 13. The closer your data is to the line Y = X, the more accurate guesser you are! How would you rate your accuracy? As time allows..... 14. Remember, a residual represents the distance between what actually happened (the dot) and the line of fit. Which celebrity did you have the biggest residual (was furthest from the perfect line of y = X)? How far off were you?
Transcribed Image Text:7. You should see a bunch of numbers similar to, but not the same as, the picture to the right, as well as a new line of fit on your scatterplot. This is the BEST line of fit possible! Write down YOUR values for r, m, b (round to 2 decimals), and the equation for your best line of fit in y= mx + b form. = 0.698 r= F₁ -mx₂ + 8 N7-0.9009 <-- 0.9492 0-176 b=50391 8. Look back at #5. What did you guess your correlation (r) was?0.5 correlation (r) value, was it close to your guess from #5? NO --0978224 12. Enter this in a new row under the "Age Guessing Table." (see pic), and you should see a new line appear on your scatter plot. 10. Delete your line of fit by clicking the "X" to the right of it (see pic to the right). 9. Your correlation (r) tells you how consistent your guessing was. A correlation (r) close to O means you are very inconsistent, but a correlation (r) close to 1 means you're very consistent! How would you rate your consistency? In The Midde, marare consistency 3--101319 y = 0,776 x+5₂391 Now that you know the real ~ y=d 11. Someone who is perfect at guessing ages and guessed every celebrity exactly correct would create the perfectly straight line y = X. Why? Think about what y & x represent in terms of actual ages and guessed ages. ~ 7000 13. The closer your data is to the line Y = X, the more accurate guesser you are! How would you rate your accuracy? As time allows..... 14. Remember, a residual represents the distance between what actually happened (the dot) and the line of fit. Which celebrity did you have the biggest residual (was furthest from the perfect line of y = X)? How far off were you?
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS