Is this the camera you just bought a few weeks ago?
Look at each shot and think about exactly where in the scene you metered (how bright was that spot?) and how far you were from the scene (what were all the subjects that were in the angle of view that the meter saw?).
It uses a center weighted meter and it may simply be that the meter saw fairly bright subjects where you pointed it.
Back when I was using cameras with center weighted meters I had to learn what it saw by trial and error then remember to point it appropriately when metering. That's not as tough as it sounds.