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HelloKitty17

  • one year ago

Algebra 1 FLVS Help please!!! Will fan and MEDAL!!!

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  1. HelloKitty17
    • one year ago
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    The table below shows the distance y, in miles, traveled by a toy car in x minutes: Time (x) (minutes) 20 30 40 50 Distance (y) (miles) 5 10 15 20 Part A: What is the most likely value of the correlation coefficient of the data in the table? Based on the correlation coefficient, describe the relationship between time and distance traveled by the toy car. (4 points) [Choose the value of correlation coefficient from 1, 0.8, 0.5, 0.02] Part B: What is the value of the slope of the graph of distance versus time, and what does the slope represent? (3 points) Part C: Does the data in the table represent correlation or causation? Explain your answer. (3 points)

  2. HelloKitty17
    • one year ago
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    @imqwerty

  3. HelloKitty17
    • one year ago
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    @Callisto @Dragonclaw88 @foreverthebeast @ganeshie8 @katt9421 @Jack1 @Mathie @NadiaElhaj_1

  4. OregonDuck
    • one year ago
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    First, plot the points. (20, 5), (30, 10), (40, 15), (50, 20) A. You'll see that it's a perfectly straight line, so it's a perfect positive correlation --- Positive because it increases from left to right. The value to represent this is 1. A correlation of 1 means time and distance have a perfect positive linear relationship, meaning if x increases by a certain value, y also increases by a certain value at the same time. In our case, every time x increases by 10, y increases by 5. B. Pick any two points and plug them into the slope formula. Lets use (20, 5) and (30, 10). m = (y₂ - y₁) / (x₂ - x₁)      = (10 - 5) / (30 - 20)      = 5/10      = 1/2 The slope represents the rate (or speed). Distance, rate, and time are related by              distance = rate • time distance / time = rate             rise / run = m                        1/2 = m The car's speed is 1/2 miles per minute. C. It's not causation because x must cause y to change, or vice versa. The car's distance has no effect on time. Time will increase steadily no matter what. Time has no effect on the car's distance. The car's movement is due to batteries, not because of time. It's a correlation because x and y are related by a common pattern mentioned in part A.

  5. Nnesha
    • one year ago
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    i don't get it. seriously

  6. Nnesha
    • one year ago
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    she is your sister right so why not just do it on a paper if you have to copy it from google ?

  7. OregonDuck
    • one year ago
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    yes so want me to do it that way

  8. Nnesha
    • one year ago
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    okay. sigh*

  9. OregonDuck
    • one year ago
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    plus we are in different houses and this is the only way i can help her

  10. hoothoot
    • one year ago
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    hey np dud i got u covered

  11. OregonDuck
    • one year ago
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    thxs man

  12. hoothoot
    • one year ago
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    i have a dude in collage well breaking from collage getting your answer

  13. Nnesha
    • one year ago
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    okay so explain it! let her do some work or teach her how to search on google

  14. hoothoot
    • one year ago
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    im a guy

  15. hoothoot
    • one year ago
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    give my bro some time

  16. Nnesha
    • one year ago
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    3 weeks enough or not ?

  17. Nnesha
    • one year ago
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    anyway good luck gys!! :) wish you all the best!

  18. OregonDuck
    • one year ago
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    thxs

  19. Nnesha
    • one year ago
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    cool that's how you found that pic ? i like it!

  20. HelloKitty17
    • one year ago
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    thanks

  21. Nnesha
    • one year ago
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    Yw

  22. hoothoot
    • one year ago
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    ok my bro almost has your answer he is getting it finished soon

  23. OregonDuck
    • one year ago
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    ok

  24. Nnesha
    • one year ago
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    answer is already p there ? isn't it ??

  25. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @OregonDuck First, plot the points. (20, 5), (30, 10), (40, 15), (50, 20) A. You'll see that it's a perfectly straight line, so it's a perfect positive correlation --- Positive because it increases from left to right. The value to represent this is 1. A correlation of 1 means time and distance have a perfect positive linear relationship, meaning if x increases by a certain value, y also increases by a certain value at the same time. In our case, every time x increases by 10, y increases by 5. B. Pick any two points and plug them into the slope formula. Lets use (20, 5) and (30, 10). m = (y₂ - y₁) / (x₂ - x₁)      = (10 - 5) / (30 - 20)      = 5/10      = 1/2 The slope represents the rate (or speed). Distance, rate, and time are related by              distance = rate • time distance / time = rate             rise / run = m                        1/2 = m The car's speed is 1/2 miles per minute. C. It's not causation because x must cause y to change, or vice versa. The car's distance has no effect on time. Time will increase steadily no matter what. Time has no effect on the car's distance. The car's movement is due to batteries, not because of time. It's a correlation because x and y are related by a common pattern mentioned in part A. \(\color{blue}{\text{End of Quote}}\) ths one ? and just a suggestion try to write it in ur own words otherwise you teacher will find out the original link :)

  26. hoothoot
    • one year ago
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    correlation coefficient is 1 slope is 5/10 which reduces to 1/2 not sure about the 3rd one

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