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Workers were surveyed about neatness, as well as other background information. Of the people making more than $75,000 annually, 11% described themselves as "neat freaks," but 66% of those earning less than $35,000 claimed that description.10

a. Is this information dealing with two single categorical variables individually, or the relationship between two categorical variables? Tell what the variables are, and if there is a relationship, tell which is explanatory and which is response.

b. Do the results suggest that neater workers are the ones who earn more or earn less?

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