What is considered to be the "data" in the M&M solution? (Ch 2: Bayes's Theorem) about thinkbayes2 HOT 2 CLOSED

I wouldn't say I have the most thorough understanding of this myself but I think the data is referring to the color mixes as you have said. I would look at probability trees for a more intuitive understanding of the multiplication taking place. What part of the probability being represented by 0.2*0.2 isn't clear?

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I would say that the mixes in the bags are background information, and the data is the color of the two M&Ms that were drawn. But the line between data and background information can be fuzzy. The important part is that you can compute the likelihood of the outcome under each hypothesis.

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