4. As fallen trees lie on the forest floor they slowly decay. Will the amount of light present have an impact on the rate of decay? In the following table x is a random variable representing the remaining percentage of total mass of a log after it was exposed to the elements for three weeks while y represents the numbers of hours of direct sunlight the log received each day. 0.60 .70 .65 .82 .87 y 1.0 2.3 3.0 4.0 4.5 (a) Plot a scatter diagram of the data. Remember to label your axes appropriately and choose a consistent scale. (b) Based on a scatter diagram, would you estimate the correlation coefficient to be positive, close to zero, or negative? Please circle one of the following choices: A. Positive B. Close to zero C. Negative (c) Interpret your results from parts (a) and (b).

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4. As fallen trees lie on the forest floor they slowly decay. Will the amount of light
present have an impact on the rate of decay? In the following table x is a random
variable representing the remaining percentage of total mass of a log after it was
exposed to the elements for three weeks while y represents the numbers of hours
of direct sunlight the log received each day.
X
0.60
.70
.65
.82
.87
y
1.0
2.3
3.0
4.0
4.5
(a) Plot a scatter diagram of the data. Remember to label your axes appropriately and
choose a consistent scale.
(b) Based on a scatter diagram, would you estimate the correlation coefficient to be
positive, close to zero, or negative?
Please circle one of the following choices:
A. Positive
B. Close to zero
C. Negative
(c) Interpret your results from parts (a) and (b).
16
tv
Transcribed Image Text:4. As fallen trees lie on the forest floor they slowly decay. Will the amount of light present have an impact on the rate of decay? In the following table x is a random variable representing the remaining percentage of total mass of a log after it was exposed to the elements for three weeks while y represents the numbers of hours of direct sunlight the log received each day. X 0.60 .70 .65 .82 .87 y 1.0 2.3 3.0 4.0 4.5 (a) Plot a scatter diagram of the data. Remember to label your axes appropriately and choose a consistent scale. (b) Based on a scatter diagram, would you estimate the correlation coefficient to be positive, close to zero, or negative? Please circle one of the following choices: A. Positive B. Close to zero C. Negative (c) Interpret your results from parts (a) and (b). 16 tv
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