There are four measurement scales (or types of data): nominal, ordinal, interval and ratio. These are simply ways to categorize different types of variables.ote: a sub-type of nominal scale with only two categories (e.g. male/female) is called â dichotomous .â If you are a student, you can use that to impress your teacher. Continue reading about types of data and measurement scales: nominal, ordinal, interval, and ratioâ¦.
A cutaneous horn, also known as cornu cutaneum, refers to a specific appearance of a skin lesion in which a cone-shaped protuberance arises on the skin caused by overgrowth of the most superficial layer of skin (epidermis).
Causes of Dark skin: 1  Bruise. 2  Mole. 3  Malignant melanoma. 4  Seborrheic wart - also senile wart. 5  Freckles. 6  Cafe-au-lait spots. 7  Hyperpigmentation - and various causes of hyperpigmentation including: Sunburn. Radiation therapy. Adrenal disorder. Addison's disease. Liver disorder. Intestinal disorder. Malnutrition. Vitamin deficiency.