This does not mean that all artists are left-handed and all accountants are righthanded.
There are many exceptions. Some right-handers have a strong right brain,
and some left-handers have a strong left brain. The best thing would be to use both
right and left sides of the brain. There are people who learn to do two things at the
same time. They can answer practical questions on the telephone (which uses the
left brain) and at the same time play the piano (which uses the right brain), but this
is not easy to do!