Linear Regression: Fitting a Linear Relation
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Questions and Answers

What is the purpose of the method of least squares in the given context?

  • To calculate the energy required to lift the weight
  • To determine the maximum weight that can be lifted
  • To find the linear relationship between the pull and the weight (correct)
  • To estimate the weight when the pull is 150

What is the estimated pull required to lift a weight of 150?

  • 783.8145 (correct)
  • 700.0000
  • 900.0000
  • 550.0000

What is the coefficient of the weight W in the linear equation P = a + bW?

  • 5.3041 (correct)
  • 7.0000
  • 3.0000
  • 5.0000

What is the intercept of the linear equation P = a + bW?

<p>-11.8005 (D)</p> Signup and view all the answers

What is the form of the linear relationship estimated between the pull P and the weight W?

<p>P = a + bW (C)</p> Signup and view all the answers

What is the average price of the commodity per kilogram at Raipur?

<p>2.463 Rs (A)</p> Signup and view all the answers

What is the standard deviation of the price at Kanpur?

<p>0.207 (D)</p> Signup and view all the answers

What is the correlation coefficient between the prices at Raipur and Kanpur?

<p>0.774 (A)</p> Signup and view all the answers

What is the most likely price at Raipur corresponding to the price of 3.052 per kilo at Kanpur?

<p>2.774 Rs (B)</p> Signup and view all the answers

What is the difference between the average prices at Kanpur and Raipur?

<p>0.334 Rs (A)</p> Signup and view all the answers

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