 Transcribed Image Text:31 The two regression lines are given by 3x + 2 y 7x + 5 y = 12 (i) Estimate y when x = 10 (ii) Calculate the correlation coefficient value between x and y (iii) What percentage of total variation remains unexplained by the regression Equation of y on x. = 6 and %3D re Q: if the total sum of squares of y is 32, the sum of squares of the regression line with respect to… A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will… Q: If the R-squared for a regression model relating the outcome y to an explanatory variable x is 0.9.… A: No, You can not just directly say that it will be positively correlated it might possible that they… Q: 31 The two regression lines are given by 3x + 2 y 7x + 5 y = 12 (i) Estimate (ii) Calculate the… A: Click to see the answer Q: If the estimated intercept of the regression equation is negative, we can say the estimated… A: Let the regression equation is y= ax + b where y is dependent variable and x is independent… Q: 2. For a linear regression model including only an intercept, the OLS estimator of that intercept is… A: We have given that For a linear regression model including only an intercept, the OLS estimator of… Q: Suppose IQ scores were obtained from randomly selected twins. For 20 such pairs of people, the… A: Click to see the answer Q: PLease help! 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If X depends on Y, then regression line is X on Y and X is dependent variable and Y is independent variable. The regression equation Y on X is Y = a + bx, is used to estimate value of Y when X is known.
How do you find a two regression equation?How to Find Regression Coefficients?. To find the coefficient of X use the formula a = n(∑xy)−(∑x)(∑y)n(∑x2)−(∑x)2 n ( ∑ x y ) − ( ∑ x ) ( ∑ y ) n ( ∑ x 2 ) − ( ∑ x ) 2 .. To find the constant term the formula is b = (∑y)(∑x2)−(∑x)(∑xy)n(∑x2)−(∑x)2 ( ∑ y ) ( ∑ x 2 ) − ( ∑ x ) ( ∑ x y ) n ( ∑ x 2 ) − ( ∑ x ) 2 .. |
The two regression lines are given by : 3x + 2y = 6 and 7x +5y = 12, estimate y when x is 10
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