Concept explainers
A researcher was hired to examine the drinking habits of energy drink consumers. Explain why he was fired when he published the results below, from a survey of 40 such consumers:
23 said they drink Red Bull.
18 said they drink Monster.
19 said they drink G2.
12 said they drink Red Bull and Monster.
6 said they drink Monster and G2.
7 said they drink Red Bull and G2.
2 said they drink all three (not at the same time, hopefully).
2 said they don’t drink any of the three brands.
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