Final answer:
The orbital period of a typical asteroid in the asteroid belt, which lies between Mars and Jupiter, is estimated to be between 3.3 to 6 years, based on their average distance of about 3 AU from the Sun.
Step-by-step explanation:
The best estimate for the orbital period of a typical asteroid in the asteroid belt is based on its average distance from the Sun. Most asteroids in the belt are about 3 astronomical units (AU) from the Sun, which puts their orbital period in the range between 3.3 to 6 years. This estimate is supported by the fact that the main belt extends from 2.2 to 3.3 AU and the orbital periods in this region fall into the aforementioned range.