An article gave a scatter plot along with the least squares

An article gave a scatter plot along with the least squares line of x = rainfall volume (m^3) and y = runoff volume (m^3) for a particular location. The accompanying values were read from the plot. Does a scatter plot of the data support the use of the simple linear regression model? Yes, the scatterplot shows a reasonable linear relationship. Yes, the scatterplot shows a random scattering with no pattern. No, the scatterplot shows a reasonable linear relationship. No, the scatterplot shows a random scattering with no pattern. Calculate point estimates of the slope and intercept of the population regression line. (Round your answers to five decimal places.) Intercept -1.68952 Calculate a point estimate of the true average runoff volume when rainfall volume is 50. (Round your answer to four decimal places.) .40.2895 m^3 Calculate a point estimate of the standard deviation a. (Round your answer to two decimal places. m^3What proportion of the observed variation in runoff volume can be attributed to the simple linear regression relationship between runoff and rainfall? (Round your answer to four decimal places.)

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