A new species оf wоrm is being studied by biоlogist. They hаve collected the following dаtа over a four year period. The x value represents the age of the worm (to the nearest year) and the y value is the worm’s length to the nearest millimeter. X Y X-squared Y-Squared XtimesY 0 21 0 441 0 3 82 9 6724 246 2 40 4 1600 80 2 45 4 2025 90 1 34 1 1156 34 2 51 4 2601 102 3 72 9 5184 216 4 94 16 8836 376 1 35 1 1225 35 2 47 4 2209 94 a. Find the correlation coefficient r [a] b. Is the correlation positive, negative, or is there no correlation? Explain what this means in your own words. [b] c. Find the line of best fit for your data, and write the equation of that line. [c] d. Using the equation of the line of best fit, how long should the scientists expect a 3.5 year old worm to be? [d]