When water flows across farm land, some soil is washed away, resulting in erosio
ID: 3124854 • Letter: W
Question
When water flows across farm land, some soil is washed away, resulting in erosion. An experiment was conducted to investigate the effect of the rate of water flow (liters per second) on the amount of soil (kilograms) washed away. The data are given in the following table.
Flow Rate: .31 .85 1.26 2.47 3.75
Eroded soil: .82 1.95 2.18 3.01 6.07
The association between flow rate and amount of eroded soil is:
A. negative
B. impossible to determine because both variables are categorical
C. neither postive nor negative
D. positive
Explanation / Answer
When water flows across farm land, some soil is washed away, resulting in erosion. An experiment was conducted to investigate the effect of the rate of water flow (liters per second) on the amount of soil (kilograms) washed away. The data are given in the following table.
Flow Rate: .31 .85 1.26 2.47 3.75
Eroded soil: .82 1.95 2.18 3.01 6.07
Correlation Matrix
Flow Rate:
Eroded soil:
Flow Rate:
1.000
Eroded soil:
.967
1.000
Correlation between flow rate and eroded soil =0.967
The association between flow rate and amount of eroded soil is:
A. negative
B. impossible to determine because both variables are categorical
C. neither postive nor negative
D. positive
Correlation Matrix
Flow Rate:
Eroded soil:
Flow Rate:
1.000
Eroded soil:
.967
1.000
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