The regression line and correlation coefficient.

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Answer 1

Question

Compare Compare Correlation is the measure of the degree of the relationship between the variables. In regression, the relationship between the variables to predict one by another is assessed. In correlation there is no cause and effect between the variables, whereas in regression there is a cause and effect between the variables. By using correlation, we cannot predict anything, but regression is a predictive tool. Coefficients are symmetrical in correlation but in regression they are asymmetrical. Correlation is independent of change in origin and scale, but regression is not independent of change in scale.

Chapter 1.3, Problem 22E

(a)

To determine

To find: The regression line and correlation coefficient.

(c)

To determine

To find: The regression line and correlation coefficient for the female students and the male students.

(c)

To determine

To sketch: The graph of the female students and male students and explain it.

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Answer 2

Question

Compare Compare Correlation is the measure of the degree of the relationship between the variables. In regression, the relationship between the variables to predict one by another is assessed. In correlation there is no cause and effect between the variables, whereas in regression there is a cause and effect between the variables. By using correlation, we cannot predict anything, but regression is a predictive tool. Coefficients are symmetrical in correlation but in regression they are asymmetrical. Correlation is independent of change in origin and scale, but regression is not independent of change in scale.

Chapter 1.3, Problem 22E

(a)

To determine

To find: The regression line and correlation coefficient.

(c)

To determine

To find: The regression line and correlation coefficient for the female students and the male students.

(c)

To determine

To sketch: The graph of the female students and male students and explain it.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Question

Compare Compare Correlation is the measure of the degree of the relationship between the variables. In regression, the relationship between the variables to predict one by another is assessed. In correlation there is no cause and effect between the variables, whereas in regression there is a cause and effect between the variables. By using correlation, we cannot predict anything, but regression is a predictive tool. Coefficients are symmetrical in correlation but in regression they are asymmetrical. Correlation is independent of change in origin and scale, but regression is not independent of change in scale.

Chapter 1.3, Problem 22E

(a)

To determine

To find: The regression line and correlation coefficient.

(c)

To determine

To find: The regression line and correlation coefficient for the female students and the male students.

(c)

To determine

To sketch: The graph of the female students and male students and explain it.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Compare Compare Correlation is the measure of the degree of the relationship between the variables. In regression, the relationship between the variables to predict one by another is assessed. In correlation there is no cause and effect between the variables, whereas in regression there is a cause and effect between the variables. By using correlation, we cannot predict anything, but regression is a predictive tool. Coefficients are symmetrical in correlation but in regression they are asymmetrical. Correlation is independent of change in origin and scale, but regression is not independent of change in scale.

Chapter 1.3, Problem 22E

(a)

To determine