The price of a jewellery diamond depends on the 4 C's: carat weight, cut, clarity, and colour.

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The price of a jewellery diamond depends on the 4 C's: carat weight, cut, clarity, and colour. Diamond colours are assigned letters from D, for colourless stones, through \(\mathrm{K}\), for increasingly more yellow stones. A K-colour stone is only faintly yellow and still considered jewellery quality. We've collected a sample of diamond prices from a website. Here's a scatterplot of Price vs. Carat Weight with points coloured according to Colour:
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QUESTION :

How does the relationship of Price and Carat Weight change with Colour?

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Business Statistics

ISBN: 9780136726548

4th Canadian Edition

Authors: Norean Sharpe, Richard De Veaux, Paul Velleman, David Wright

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