(Redirected from Weighted mean) In colloquial language, an average is the sum of a list of numbers divided by the number of numbers in the list. In mathematics and statistics, this would be called the arithmetic mean. In statistics, mean, median, and mode are all known as measures of central tendency.
Definition of cat'sâeye for English Language Learners. : 1  a jewel that has a pale stripe running down its middle which makes it look like the eye of a cat. : 2  a marble with round circles that look like eyes.
Hereâs a picture of a cat with one eye, the other lost to an early herpes virus infection, and although this one eyed cat leads a happy, healthy life, this is not what you prefer for your cat. Your kitten or cat needs to be seen immediately by your veterinarian anytime there seems to be eye problems.