What percentage of the following groups have used marijuana in the past year?

[Willy Woz]

That is the conventional wisdom, but it appears to be wrong.  cite

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It's possible blacks and hispanics are slightly more likely to lie on such a thing (because of distrust of "the man" or something), but I doubt it.

The results don't surprise me a whole lot. Minorities aren't really big on cannabis culture; mostly weed users are college students from monied families, often times in fraternities and such. Blacks use blunts if they smoke pot at all.