Oil and Gas Prices The average gasoline price per gallon (in cities) and the cost of a barrel of oil are shown for a random selection of weeks from  2009-2010.   Is there a linear relationship between the variables?   Oil ($)       60.33    87.09    78.12    82.91    64.76    69.58 Gasoline ($)       2.188    2.350    2.625    2.627    2.489    2.791   Part 1 of 5 Your Answer is correct       (a)Draw the scatter plot for the variables.     Oil and Gas Prices Gas Prices y 0.5 1 1.5 2 2.5 3 3.5 4 4.5 x 10 20 30 40 50 60 70 80 90 0                   Oil Prices Part: 1 / 5 1 of 5 Parts Complete   Part 2 of 5 Your Answer is incorrect       (b)Compute the value of the correlation coefficient. Round your answer to at least three decimal places.   r=?

At Bats and Hits The data below show the number of three-base hits (triples) and the number of home runs hit during the season by a random sample of MLB teams. Is there a significant relationship between the data? Triples       25    24    34    31    19    29 Home runs       312    236    301    279    276    270 Send data to Excel Part 1 of 5 Your Answer is correct     (a) Draw the scatter plot for the variables.   At Bats and Hits Home runs y 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380 x 5 10 15 20 25 30 35 40 45 50 55 60 0                   Triples Part: 1 / 5 1 of 5 Parts Complete   Part 2 of 5       (b) Compute the value of the correlation coefficient. Round your answer to at least three decimal places. r=?

Mathematics

What is the coefficient of the dummy variable? What is the meaning of the coefficient of the dummy variable?

Need help with d and e pls

Oil and Gas Prices The average gasoline price per gallon (in cities) and the cost of a barrel of oil are shown for a random selection of weeks from  2009-2010. Is there a linear relationship between the variables?   Oil ($)       41.55    51.83    52.78    50.03    57.59    66.95 Gasoline ($)       2.664    2.256    2.375    2.231    2.438    2.890   Part 1 of 5 Your Answer is correct       (a)Draw the scatter plot for the variables.     Oil and Gas Prices Gas Prices y 0.5 1 1.5 2 2.5 3 3.5 4 4.5 x 10 20 30 40 50 60 70 80 90 0                   Oil Prices Part: 1 / 5 1 of 5 Parts Complete   Part 2 of 5         (b)Compute the value of the correlation coefficient. Round your answer to at least three decimal places.   r=?