As a candidate, trying to gather as much information as possible in a short time, it can actually be really useful to re-ask a question that you already "know the answer" to. Different people will offer different perspectives on things, and you can end up with a fuller picture.

That said you should phrase it in a way that doesn't sound like you're just asking for the same information that's already available: "So the posting said the team uses Agile; how does that show up in a typical week?"