Question

Given the following sample observations, draw a scatter diagram on a separate piece of paper. X:...

Given the following sample observations, draw a scatter diagram on a separate piece of paper.

X: −7 −17 13 4 16
Y: 57 247 157 2 343

  1. Compute the correlation coefficient. (Round your answer to 3 decimal places.)

  1. Does the relationship between the variables appear to be linear?

  • Yes

  • No

  1. Try squaring the x variable and then determine the correlation coefficient. (Round your answer to 3 decimal places.)

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

The statistical software output for this problem is :

Correlation coefficient = 0.195

No

After squaring the x variable and then determine the correlation coefficient.

Correlation coefficient = 0.0.937

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