Why Is Knowing the Variability or Dispersion of a Variable

question 70

Essay

Why is knowing the variability or dispersion of a variable as important as knowing its central tendency? How is variation measured?

---

Definitions:

Radial Vein

A vein that accompanies the radial artery and drains blood from the lateral portion of the forearm.

Forelimb

The front limbs of an animal that in humans refer to the arms, including structures from the shoulder to the fingers.

Saphenous Vein

A large vein running along the length of the leg, commonly used for grafts in coronary artery bypass surgery.

Brachiocephalic Vein

A large vein in the upper chest that transports deoxygenated blood from the upper limbs, neck, and head to the heart.