As part of a conservation project, Darren was asked to measure the circumference of trees that...
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As part of a conservation project, Darren was asked to measure the circumference of trees that were growing at different distances from a beach. His results are shown in the following table. Distance, r (metres) 6 14 20 25 35 48 46 48 52 Circumference, y (centimetres) 52 57 57 68 65 70 75 80 82 (a) State whether distance from the beach is a continuous or discrete variable. (b) On graph paper, draw a scatter diagram to show Darren's results. Use a scale of 1 cm to represent 5 m on the x-axis and 1 cm to represent 10 cm on the y-axIS. (c) Calculate the mean distance X, of the trees from the beach. (d) Work out the mean circumference Y, of the trees. (e) Report the Pearson's product-moment correlation coefficient 'r' for Darren's results. As part of a conservation project, Darren was asked to measure the circumference of trees that were growing at different distances from a beach. His results are shown in the following table. Distance, r (metres) 6 14 20 25 35 48 46 48 52 Circumference, y (centimetres) 52 57 57 68 65 70 75 80 82 (a) State whether distance from the beach is a continuous or discrete variable. (b) On graph paper, draw a scatter diagram to show Darren's results. Use a scale of 1 cm to represent 5 m on the x-axis and 1 cm to represent 10 cm on the y-axIS. (c) Calculate the mean distance X, of the trees from the beach. (d) Work out the mean circumference Y, of the trees. (e) Report the Pearson's product-moment correlation coefficient 'r' for Darren's results.
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Distne is disrete vrible in this se sine we hve the ext numbers f... View the full answer
Related Book For
Canadian Income Taxation planning and decision making
ISBN: 9781259094330
17th edition 2014-2015 version
Authors: Joan Kitunen, William Buckwold
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