Let’s suppose that:

1. $60\mathrm{\%}$ of students who study Chinese are artistic and love poetry.
2. $20\mathrm{\%}$ of students who study Business are artistic and love poetry, and
3. Only about $1\mathrm{\%}$ of students study Chinese, whereas about $15\mathrm{\%}$ of students study Business.

Thus, out of every $1000$ students, there are $10$ studying Chinese, of whom $6$ are artistic and love poetry, and also there are $150$ studying Business, of whom $30$ are artistic and love poetry.

So if a student is artistic and loves poetry, it’s $5$ times more likely she’s studying Business than Chinese.

So much for preconceptions (and “correlation”).