Page 2 Math 240-Test 4-Dr. Wolfle B. Answer the following questions (6 points ea

Question

Page 2 Math 240-Test 4-Dr. Wolfle B. Answer the following questions (6 points each) 6. Use the scatterplot below to answer the following questions: PLAYER WEIGHTAHEIGHT 85 80 75 70 65 60 ·. 110 120 130 140 150 160 170 180 180 200 210 220 230 WEIGHT(POUNDS) a. What type of correlation is indicated by the graph? b. Estimate the correlation coefficient (r) 7. Can two variables have a low linear correlation coefficient, r, but be very strongly related? If yes, give an example. If no, explain why, (6 pts)

Explanation / Answer

6) a) From the scatter plot it's clear that as weight of a player increases the height also increases..

Hence there is a positive correlation between the Weight and Height of the player.

b) From the scatter plot we see that the data values are all falling around the line Height=Weight,

So value of r is approximately 1

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