1.Find the linear correlation coefficient for the paired data: (5,64), (10,86), (4,69), (6,86), (10,59), (9,87).
0.333
0.678
-0.224
0.750
0.999
-0.678
0.975
0.224 21.
2.Find the linear correlation coefficient for the paired data: (46.6,8), (27.2,8), (43.1,3), (29.0,9), (34.8,2).
0.2730
-0.181
0.543
0.307
-0.273
-0.307
-0.273
3. Find the equation of the regression line for the paired data: (6,2), (8,4), (20,13), (28,20), (36,30).
y = -3.79x + 0.897
y = -3.79 + 0.897
y = -2.79 + 0.897x
y = 0.897x - 3.79
y = -3.79 - 0.879x
y = -3.79x + 0.879
y = -3.79 - 0.897x
y = 3.79x + 0.879
4. Find the equation of the regression line for the paired data: (2,7), (4,11), (5,13), (6,20).
y = 0.15 + 2.8x
y = 0.15x + 3.0
y = 0.15x + 2.8
y = 0.15 + 3.0x
y = 3.0x y = 2.8x
y = 3.0 + x
y = 2.8 + x
1.
X Values
∑ = 44
Mean = 7.333
∑(X - Mx)2 = SSx = 35.333
Y Values
∑ = 451
Mean = 75.167
∑(Y - My)2 = SSy = 798.833
X and Y Combined
N = 6
∑(X - Mx)(Y - My) = 37.667
R Calculation
r = ∑((X - My)(Y - Mx)) /
√((SSx)(SSy))
r = 37.667 / √((35.333)(798.833)) = 0.2242
1.Find the linear correlation coefficient for the paired data: (5,64), (10,86), (4,69), (6,86), (10,59), (9,87). 0.333...
17. Explain how you found the linear correlation coefficient. Find the value of the linear correlation coefficient r. Points: 5 17) The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 D) 0.224 C) 0.678 B) -0.678 A) -0.224 Explain how you found the linear correlation coefficient.
4:13 7 11 Exit O 2 PM Question 20 5 pts The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 Find the value of the correlation coefficient r for this data. 0.224 0.678 -0.224 -0.678 Question 21 5 pts Determine which plot shows the strongest linear correlation.
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