AX. Averages are not what they seem!
Is a man of perfectly average height, and perfectly average weight, too heavy for his size? Averages are not what they seem to be.
Archive for The Mathcast
AW. Will we run out of Social Security Numbers?
When will the crisis come? When will we run out of Social Security Numbers, and other musings.
AV. Dennis Shasha Answers
Dennis Shasha, author of The Puzzler’s Elusion explains how his finger multiplication works!
AU. Dennis Shasha asks about Polish Multiplication
Dennis Shasha, puzzle columnist for Scientific American, asks about a curious way to multiply numbers on your fingers.
AT. Peter Winkler Answers
Peter Winkler answers. Another puzzle next week!
AS. A Puzzle From Peter Winkler
Peter Winkler, author of “Mathematical Puzzles: A Connoisseur's Collection”, asks how many coins are needed to cover a table.
AR. A Quick Game
Two players take turns removing coins from a line; how can the first player always be sure to have at least as much money as the second?
AQ. The Principle of Indifference Redux
The solution to the balls puzzle and a quick puzzle about cards.
AO. Choosing Balls from A Bag
A fifty-fifty chance of drawing four blue balls from a bag: how many balls were blue?
AN. More Sucker Bets
Is there always a better choice?
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