Someone who is right-handed will use their right-hand for everyday activities, such as writing, keeping personal hygiene, cooking and more. According to a studies, anywhere from 70% to 90% of the world population is right-handed, while most of the remaining are left-handed. A small percentage of the population can use both hands equally well; a person with this ability is called a ambidextrous.
Right-handedness Facts for Kids. Kiddle Encyclopedia.