By Robert Eastaway
ISBN-10: 0471347566
ISBN-13: 9780471347569
ISBN-10: 0585309949
ISBN-13: 9780585309941
Why is it greater to shop for a lottery price tag on a Friday? Is undesirable good fortune simply probability, or can it's defined? Is it attainable to win each time with out dishonest? and will math drastically raise your odds of having a date or even falling in love? If you might have had the sneaking suspicion ever because the 3rd grade that math is conspiring opposed to you—you're correct. Math and the legislation of likelihood are continually at paintings in our lives, affecting every thing we do from getting a date to catching a bus.Why Do Buses are available Threes? is a delightfully interesting experience for somebody eager to remind themselves—or observe for the 1st time—that math is suitable to nearly every thing we do. Buses that bunch, exact potato chips, and cutting a cake lightly for a strange variety of site visitors all have their hyperlinks to exciting mathematical difficulties. With nice humor and a real love for the topic, the authors current the recommendations to such conundrums as how briskly one should still run within the rain to maintain dry and who was once the best sportsman statistically.Discover the mathematical factors for the unusual accident of 2 Presidents demise on July four, the uncanny "accuracy" of horoscopes, the variety of petals on a flower and seeds in an apple, and different not-so-coincidental coincidences. Eastaway and Wyndham additionally demonstrate how tv rankings paintings, which numbers usually tend to be giant winners within the lottery, and why undesirable issues, similar to buses, consistently appear to occur in threes. it is a attention-grabbing trip during the good judgment of existence the place Newton's legislation clarify bar fights, exploding rabbit populations, and why showers regularly run both too sizzling or too chilly. For the youngsters, the authors have committed a whole bankruptcy to tips that entertain, educate, and baffle youngsters with the mystical houses of numbers. So climb aboard, take a trip, and notice the hidden mathematical code to a few of life's maximum (and such a lot frustrating) questions.You could be aware of 2+2, yet are you aware . . .Which a part of a relocating teach is often desk bound, and which half is often touring within the opposite path to the teach itself? How figuring out Pascal's triangle can hold you from being overcharged in a brand new York taxicab? What renowned lunch nutrients has its personal theorem? Why lighting fixtures are continually pink if you end up in a rush? Why math, now not the fool in entrance of you, is guilty to your being caught in lengthy traces on the grocery store? Math: it's not all on your head . . .
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Additional info for Why do buses come in threes?: the hidden mathematics of everyday life
Sample text
A large sample has been taken, and clever techniques have been used to ensure that the answers received have been truthful. Unfortunately this is still not enough to be certain that the results of the survey are accurate. The sample taken has to be representative of the whole population too. One of the large market research companies was commissioned to test out the public's reaction to a new product: tins of baked beans with pork sausages. They selected a district of London which was conveniently located, had a representative income level and a mixed age-group.
If the number watching was really 23 and not 24 million, the program would still be shown. Many, if not most, of the statistics that we deal with every day don't have to be correct to a high level of precision. Done properly, small samples can produce remarkably accurate estimates. Taking samples is big business. There are thousands of market research companies finding out what we eat, what we watch, where we travel, and what we think about it all. So how does sampling work? Page 24 Instead of asking 250 million people, you can get extremely close to the right answer by asking only a small fraction of that number.
Leaves, too, most often come in twos, threes and fives. Hence, clovers fit the pattern by usually coming with three leaves and not four. But why is it that Fibonacci numbers crop up so often in plants? It all comes down to the link between the Fibonacci series and a special number that ancient civilisations believed to have divine and mystical properties. That special number is the golden ratio. The Golden Ratio The golden ratio, or f (phi) is (Ö5 +1)/2. 618. As a number it may not have sent your pulse racing, yet its importance in nature is profound.
Why do buses come in threes?: the hidden mathematics of everyday life by Robert Eastaway
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