Calculate the correlation coefficient

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Reference no: EM131622841

Problem 1 : If r = 0.4, cov(x, y) = 10, σy = 5, find σx.

Problem: Calculate the correlation coefficient and determine the regression lines of Y on X and X on Y for the sample

X

8

10

5

8

9

Y

1

3

1

2

3

Problem: Fit a linear equation to the following data

X

2

4

6

8

10

Y

2.3

2.6

2.9

2.10

2.12

Problem: Fit a parabola y = a + bx + cx2 using least square method for the following data

X

1.0

1.5

2.0

2.5

3.0

3.5

4.0

Y

1.1

1.3

1.6

2.0

2.7

3.3

4.1

Reference no: EM131622841

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