This statement is a bit of a trick question! It's true that the vast majority of stars in the universe are red dwarfs.

Here's why the statement is tricky:

* All stars are stars: The statement implies that there's some other type of object in space that makes up the remaining 10%. However, everything we call a star is, in fact, a star.

* Red dwarfs are just one type of star: There are many types of stars, including giants, supergiants, white dwarfs, neutron stars, and more. Red dwarfs are simply the most common type.

So, the statement is technically correct, but misleading. It's more accurate to say that about 90 percent of the stars in space are red dwarfs.