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6.5 Exit Ticket - Linear Correlation and Regression

Last updated 20 days ago

5 Nsɛmmisa

The manager of a folder factory recorded the number of folders produced by the factory (in thousands) and the production costs (in thousand Euros), for six consecutive months. Every month the factory sells all the folders produced. Each folder is sold for 2.99 Euros.

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1.

What is Pearson's product-moment correlation coefficient?

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2.

Hence describe the association between the variables in a sentence.

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3.

Write the equation of the linear regression.

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4.

Use the equation of the regression line to estimate the production cost of 43 folders.

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5.

Use the equation of the regression line to estimate the number of folders that could be produce for 125 thousand Euros.