It is always dangerous to make sweeping generalizations.
Many girls have a much better ability to consider more factors than many boys are able to do. Often, boys are given an advantage in math classes (for a variety of reasons), so sometimes their math skills are better. It depends on the kind of estimating you are interested in.
Many girls have a much better ability to consider more factors than many boys are able to do. Often, boys are given an advantage in math classes (for a variety of reasons), so sometimes their math skills are better. It depends on the kind of estimating you are interested in.