Several bakeries in a town were asked the price for different amounts of donuts at their shop. The scatter plot with a line of best fit was created from the data gathered. Scatter plot titled donut pricing with the x-axis labeled number of donuts and y-axis labeled total cost in dollars, with points at (1, 2), (1, 3), (2, 4), (3, 4), (3, 5), (4, 3), (4, 5), (5, 5), (5, 6), and (6, 2), with a line of best fit drawn at y equals 3.1 plus 0.24 × x. Part a: Estimate the correlation coefficient. Explain your reasoning for the given value.