Given that the correlation between X and Y is -0.48, the mean and standard deviation of X are 3.4 and 8.3, the mean and the standard deviation of Y is 6.5 and 7.2 respectively. Find the y-intercept for the line of best fit. [____] round to 1 d.p.
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The line of best fit, or the regression line, can be represented by the equation \(Y = a + bX\), where \(Y\) is the dependent variable, \(X\) is the independent variable, \(a\) is the Y-intercept, and \(b\) is the slope of the line. Show more…
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Given that the correlation between X and Y is -0.48, the mean and standard deviation of X are 3.4 and 8.3, and the mean and standard deviation of Y are 6.5 and 7.2 respectively, find the Y-intercept for the line of best fit: [ ~] rounded to 1 decimal place.
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Given that the correlation between X and Y is 0.84, the mean and standard deviation of X are 4.3 and 3.8, the mean and the standard deviation of Y is 2.7 and 5.6 respectively. Find the slope for the line of best fit.
Given the following summary statistics, find the slope and y-intercept for the regression equation. Sample Standard Deviation: Sx 3.45 Sample Standard Deviation: Sy 1.89 Correlation: r -0.77 Sample Mean: x-bar 20.82 Sample Mean: y-bar 65.94 Round your answers to 2 decimal places. In calculating the y-intercept, use the value for the slope before it was rounded. Slope = Intercept =
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