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Linear Regression: Fitting a Linear Relation

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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?

-11.8005 (D) Signup and view all the answers

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

P = a + bW (C) Signup and view all the answers

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

2.463 Rs (A) Signup and view all the answers

What is the standard deviation of the price at Kanpur?

0.207 (D) Signup and view all the answers

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

0.774 (A) 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?

2.774 Rs (B) Signup and view all the answers

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

0.334 Rs (A) Signup and view all the answers