# FAQ: Statistical Thinking - Describing Categorical Variables

This community-built FAQ covers the “Describing Categorical Variables” exercise from the lesson “Statistical Thinking”.

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## FAQs on the exercise Describing Categorical Variables

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Some of the proportions and percentages don’t look correct to me. For example, the “correct” proportion and percentage for vocals, according to the lesson, is .27 and 27%, respectively.

However, if you divide 262 (the number of vocalists) by 1000 (the total musicians), you get 0.262. Rounding 0.262 to 2 decimal places should result in 0.26, not 0.27, unless I missed something very important about rounding numbers when I first learned how to do it.

There are 958 musicians according to the table, but the csv seems to have different numbers. The original data csv included 12 rows of row titles. I suppose we’ll be cleaning up the data at some stage.

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a proposito di dati :))