Learn French: Le chercheur a analysé les données. - The researcher analyzed the data.

Not at all! Chercher means to look for or to seek. By adding the ending -eur (which often indicates a profession or someone doing an action), it becomes chercheur—literally a seeker, which is the French word for researcher.

Why does the French sentence use a plural word (les données) for data?

In English, we often treat data as a single uncountable concept. In French, les données is treated as a countable plural noun. It acts like any regular plural object, so it must take the plural article les.

Does the word données have anything to do with the verb donner (to give)?

Yes! Données translates literally to givens or things that are given. In research and science, data are the given facts you start with to solve a problem. Because it comes from a feminine noun (une donnée), it has an extra -e before the -s.

Why is the past tense here a analysé instead of just one word?

This is the passé composé, the most common past tense in French for completed actions. It is made of two parts: the helping verb (a, from avoir) and the past participle (analysé). While English often uses a single word (analyzed), French requires both parts to show the action is completely finished in the past.