Question

1. Which of the following is correct? A. In correlation analysis there are two variables and both are dependent B. I n correlation analysis there are two variables and both are independent C. I n regression analysis there are two variables and both are dependent D: In regression analysis there are two variables and both are independent 2. measures the strength of linear association between two variables. A. Regressor B. Regressand C. Correlation coefficient D. None 3. the independent variables. is locus of the conditional means of the dependent variable for the fixed values A. Conditional expectation function B. Population regression model C. Population regression line D. None 4. Which equation shows the "linearity" regression assumption? A. Y-pit β22X I. errors of measurement II. lack of data II. unsure about variables affecting Y ch of the reasons given above are reasons for introducing stochastic error term in the Whi regression model? A. I and II B. I and III C. II and II D. I, II and III Regression analysis was firstly introduced by Francis Galton in 1886 in his famous where he tried to found out A. Crop yield given temperature, rainfall and sunshine data B. Average height of sons given their fathers' height C. Weekly consumption expenditure of families given their weekly incomes D. None

Answer 1

2)
option C) correlation coefficient

3)
A population regression curve is simply the locus of the conditional means of the dependent variable for the fixed values of the explanatory variable(s).

option B)

4)
option C)

Please Q1 , 5 and 6 again