Question

Consider the following table of data. Complete parts (a) through (c) below. X 1 2 3 4 y 2.00 2.00 2.00 2.40 a. Calculate the correlation coefficient. r = (Type an integer or decimal rounded to four decimal places as needed.) b. Sketch a graph of the data. Choose the correct answer below. OA. Ay OB. OC. OD. Ay Ay Ay 5- 5- 5- 5- 4- 4- 4- 4- 3- 3- 3- 3- 2- 2- 2- 2- 1- 1- 1- 1- 0- 0- 0- 0- 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 0 1 2 3 4 5 c. Based on how closely the data fits a straight line, is the answer to part (a) surprising? Discuss the extent to which the correlation coefficient describes how well the data fit a horizontal line. A. It is surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 0. The correlation coefficient is positive, leading one to expect decreasing line, not a horizontal line. B. It is surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 1 or \(-1\). The correlation coefficient is positive, leading one to expect a decreasing line, not a horizontal line. C. It is not surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 0. The correlation coefficient is positive, leading one to expect an increasing line, not a horizontal line. D. It is not surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 1 or \(-1\). The correlation coefficient is positive, leading one to expect an increasing line, not a horizontal line.

          Consider the following table of data. Complete parts (a)
through (c) below.
X
1
2
3
4
y
2.00
2.00
2.00
2.40
a. Calculate the correlation coefficient.
r = 
(Type an integer or decimal rounded to four decimal places as needed.)
b. Sketch a graph of the data. Choose the correct answer below.
OA.
Ay
OB.
OC.
OD.
Ay
Ay
Ay
5-
5-
5-
5-
4-
4-
4-
4-
3-
3-
3-
3-
2-
2-
2-
2-
1-
1-
1-
1-
0-
0-
0-
0-
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
c. Based on how closely the data fits a straight line, is the answer to part (a) surprising? Discuss the extent to which the correlation coefficient describes how well the data fit a horizontal line.
A. It is surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 0. The correlation coefficient is positive, leading one to expect decreasing line, not a
horizontal line.
B. It is surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 1 or \(-1\). The correlation coefficient is positive, leading one to expect a
decreasing line, not a horizontal line.
C. It is not surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 0. The correlation coefficient is positive, leading one to expect an increasing line,
not a horizontal line.
D. It is not surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 1 or \(-1\). The correlation coefficient is positive, leading one to expect an
increasing line, not a horizontal line.

Consider the following table of data. Complete parts (a)
through (c) below.
X
1
2
3
4
y
2.00
2.00
2.00
2.40
a. Calculate the correlation coefficient.
r =
(Type an integer or decimal rounded to four decimal places as needed.)
b. Sketch a graph of the data. Choose the correct answer below.
OA.
Ay
OB.
OC.
OD.
Ay
Ay
Ay
5-
5-
5-
5-
4-
4-
4-
4-
3-
3-
3-
3-
2-
2-
2-
2-
1-
1-
1-
1-
0-
0-
0-
0-
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
0
1
2
3
4
5
c. Based on how closely the data fits a straight line, is the answer to part (a) surprising? Discuss the extent to which the correlation coefficient describes how well the data fit a horizontal line.
A. It is surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 0. The correlation coefficient is positive, leading one to expect decreasing line, not a
horizontal line.
B. It is surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 1 or -1. The correlation coefficient is positive, leading one to expect a
decreasing line, not a horizontal line.
C. It is not surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 0. The correlation coefficient is positive, leading one to expect an increasing line,
not a horizontal line.
D. It is not surprising. Given how closely the data fits a line, one would expect a correlation coefficient close to 1 or -1. The correlation coefficient is positive, leading one to expect an
increasing line, not a horizontal line.

Added by Mark R.

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