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February 12th, 2017, 04:54 PM   #1
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Are birthdays quantitative or qualitative?

My teacher had a set of data on the board about baseball players, and it involved their birthday as 1/23/45 or something similar. He asked us if the data was quantitative or qualitative and then he got stumped and moved on, leaving us confused.
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February 13th, 2017, 03:12 PM   #2
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What was the data?
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February 14th, 2017, 05:04 AM   #3
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The difference depends not only on what data set you look at, but how you look at it. Sometimes the same data can be examined either way. A simple test would be see if it matters, to your analysis, if you re-order the data.

The average age of a MLB player today is about 28.6 years. That's a quantitative measure that indicates a distribution of birthdays that centers somewhere near the summer of 1988. If you are interested in age, you can't put those born after 1995 "before" - that is "older than" - those born before 1985 without affecting this measure. So its a quantitative analysis.

If you are interested in which month produces the most players, its a qualitative analysis. It doesn't matter if you count those born in November before those born in May. In fact, some of them were.
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