4. As fallen trees lie on the forest floor they slowly decay. Will the amount of lightpresent have an impact on the rate of decay? In the following table x is a randomvariable representing the remaining percentage of total mass of a log after it wasexposed to the elements for three weeks while y represents the numbers of hoursof direct sunlight the log received each day.X0.60.70.65.82.87y1.02.33.04.04.5(a) Plot a scatter diagram of the data. Remember to label your axes appropriately andchoose a consistent scale.(b) Based on a scatter diagram, would you estimate the correlation coefficient to bepositive, close to zero, or negative?Please circle one of the following choices:A. PositiveB. Close to zeroC. Negative(c) Interpret your results from parts (a) and (b).16tv

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Description: 4. As fallen trees lie on the forest floor they slowly decay. Will the amount of lightpresent have an impact on the rate of decay? In the following table x is a randomvariable representing the remaining percentage of total mass of a log after it was

Given Information : As fallen trees lie on he forest floor they slowly decay . Will the amount of light present have an impact 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 number of hours of direct sunlight the log received each day . To create a scatter chart of this information, take the following steps: Select the worksheet data range On the Insert tab, click the XY (Scatter) chart command button. Select the Chart subtype that doesn’t include any lines. Excel displays data in an XY (scatter) chart. Confirm the chart data organization. Scatter Plot : Interpreting Scatter Plot : If the data show an uphill pattern as you move from left to right, this indicates a positive relationship between X and Y. As the X-values increase (move right), the Y-values tend to increase (move up). If the data show a downhill pattern as you move from left to right, this indicates a negative relationship between X and Y. As the X-values increase (move right) the Y-values tend to decrease (move down). If the data don’t seem to resemble any kind of pattern (even a vague one), then no relationship exists between X and Y. From the stated above , In the resulted scatter plot , points are in uphill direction and clustered around a straight line . In other words , it can be say that as the value of x increasing the value of y is also increasing . Therefore , correlation coefficient will be positive .

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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. 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).

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).

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Topic Video

Question

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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