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Mean, Mode, Median


Three types of averages are the mean, mode and median. The weekly salaries of six employees at McDonalds are $140, $220, $90, $180, $140, $200. For these six salaries, find: (a) the mean (b) the median (c) the mode.
List the data in order: 90, 140, 140, 180, 200, 220

Mean:    90+ 140+ 140+ 180 + 200 + 220 = 161.66666666

Median:    90,140,140,180,200,220
The two numbers that fall in the middle need to be
averaged.     140 + 180 = 160

Mode:   The number that appears the most is 140

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Magic Square

Lo Shu Turtle

by Allan Adler

Magic Square 3 X 3A magic square is an arrangement of the numbers from 1 to n^2 (n-squared) in an nxn matrix, with each number occurring exactly once, and such that the sum of the entries of any row, any column, or any main diagonal is the same. It is not hard to show that this sum must be n(n^2+1)/2.
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Brian Miller's Vision: As a child at school I recall my teacher asking all 30 pupils within my class, where was the center of the United Kingdom. I was the only child that answered London because I could see what the others could not. Continue reading BRIAN MILLER

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Generally, a trichotomy is a splitting into three disjoint parts. Continue reading Trichotomy

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Computer Animation

Computer Animation relating to the world of 3d modeling/animation depends upon concepts that form their rules around groups of three main pieces. Continue reading Computer Animation