Let x be the age in years of a licensed automobile driver. Let y be the percentage of all fatal accidents (for a given age) due to speeding. For example, the first data pair indicates that 37% of all fatal accidents of 17-year-olds are due to.speeding. 17 27 37 47 57 67 77 37 23 23 12 10 7 Complete parts (a) through (e), given Ex = 329, Ey = 117, Ex² = 18,263, Ey2 = 2745, Exy = 4089, and r -0.948. (a) Draw a scatter diagram displaying the data.

The percentage of the variation in the value of y this is explained by the lease squares regression line is Group of answer choices   ρ the slope of the regression line. the correlation coefficient. the coefficient of determination. the y-intercept of the regression line.   The data below shows the summary statistics for a regression analysis on car weight (in metric tons) and fuel consumption (in miles per gallon). b0=48.8b0=48.8  b1=−8.37b1=−8.37  r2=0.36r2=0.36    (Note that 0.362=0.13 and 0.36−−−−√=0.6)(Note that 0.362=0.13 and 0.36=0.6)        Choose the correct interpretation of the y-intercept of the line:

r = -0.579 Calculate the coefficient of determination. (Round to three decimal places as needed.) What does this tell you about the explained variation of the data about the regression line? % of the variation can be explained by the regression line. (Round to one decimal place as needed.) About the unexplained variation? % of the variation is unexplained and is due to other factors or to sampling error. (Round to one decimal place as needed.)

egression line? About the unexplained variation? r= -0 422 Calculate the coefficient of determination. Round to three decimal places as needed.) What does this tell you about the explained variation of the data about the regression line? % of the variation can be explained by the regression line. (Round to one decimal place as needed.) About the unexplained variation? % of the variation is unexplained and is due to other factors or to sampling error. (Round to one decimal place as needed.)

Why is the coefficient of variation important? What do we mean when we say that the coefficient of variation has no units? What advantage can there be in having no units? Why is relative size important?

Use the value of the linear correlation coefficient to calculate the coefficient of determination. What does this tell you about the explained variation of the data about the regression​ line? About the unexplained​ variation? r= -0.438   please dont copy paste the content from other sites

Can you please help with sub-parts C and D

Please help!!

Using your favorite statistics software package, you generate a scatter plot with a regression equation and correlation coefficient. The regression equation is reported asy=−62.75x+42.07y=-62.75x+42.07and the r=−0.022r=-0.022.What proportion of the variation in y can be explained by the variation in the values of x?r² = %Report answer as a percentage accurate to one decimal place.