Hello tuija,
That's awesome you're from Finland! Greetings from the USA It's rather difficult to tell based on the pictures because the plant is so young. But based on the spacing of leaf stems/petioles, color/shape and the thickness of the pseudostem, my guess would most certainly be a dwarf cavendish or super dwarf cavendish. When they are young like that its often hard to tell them apart, but as they get older the super dwarf will be much thicker and more stout looking. Both will produce edible fruit, although the dwarf cavendish is less temperamental and easier to fruit than the super dwarf cavendish (although quite a bit larger too haha). Musa tropicana is a pretty popular trade name that's used in large store chains and has seen some discussion on these forms. Here are two other similar threads that I've come across. The general consensus is that they are super dwarf cavendish (SDC). Hope this helps! Best wishes
musa tropicana
musa tropicana?
Musa Super Dwarf Cavendish - Bananas Wiki
Also, here's a photo posted by another bananas.org member Gabe15 that compares the two side by side. The Super Dwarf Cavendish is on the left:
Banana Gallery - SDC vs. DC