Define precision and accuracy. Exp,ain with one example.

Explanation

Precesion: The closeness of two or more measurements to each other is known as precision.
Accuracy: The closeness of a meaured value of the actual value of the object being measured is called accuracy.
Example: Suppose a man's true height is exactly 5'9". When it is measured with a yardstick, the vaule is 5'0". Hence measurement is not accurate. When height is measured with a laser yardstick, the value is 5'9" then measurement is accurate. If the height is measured consistently as 5'0" with a yardstick, the measurements are precise.