Handedness
Handedness is a better (faster or more precise) performance or individual preference for use of a hand, known as the dominant hand. Handedness is not a discrete variable (right or left), but a continuous one that can be expressed at levels between strong left and strong right.
There are four types of handedness: left-handedness, right-handedness, mixed-handedness, and ambidexterity. Left-handedness is somewhat more common among men than among women.
Types
Right-handedness is most common. Right-handed people are more skillful with their right hands when performing tasks. Studies suggest that 87–92% of the world population is right-handed.
Left-handedness is less common than right-handedness. Left-handed people are more skillful with their left hands when performing tasks. Studies suggest that approximately 10% of the world population is left-handed.
Cross-dominance or Mixed-handedness is the change of hand preference between tasks. This is common in the population with about a 30% prevalence.
