A Turn to Alternative Chemicals
With a push from state government and industries, chemical companies are producing more environmentally benign products. nytimes.com
Is That a Fair Coin in Your Pocket?
I've got the answers to last week's Mr. Smith's gambling problem and Mr. Smith's 3-Card Monty problem, plus one new problem. The good news for this new one is that you don't need much expertise in probability to answer it: Suppose you take a coin from your wallet. You toss it eight times, and get [...]. tierneylab.blogs.nytimes.com