We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Artificial Intelligence
  3. Statistics and Machine Learning
  4. Correlation and Regression Lines - A Quick Recap #5
  5. Discussions

Correlation and Regression Lines - A Quick Recap #5

  • arrickx
     + 4 comments
    1. y is the dependent variable for 4x – 5y + 33 = 0
    2. x is the dependent variable in 20x – 9y – 107
    3. find slope for 4x – 5y + 33 = 0 which is 5/4
    4. find slope for 20x – 9y – 107 which is 20/9
    5. standard deviation of x = 3 so variance = 3^2 = 9
    6. according to user @ovidalp83 slope1 = cov(x,y)/Var(X) = 5/4 slope2 = cov(x,y)/Var(Y) = 20/9 Var(Y) = slope1/slope2 * Var(X)
    7. find your answer!