What probability does the photo of the baby in the wallet increase? Detailed answer

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What probability does the photo of the baby in the wallet increase? Detailed answer

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What probability does the photo of the baby in the wallet increase?

In 2009, a group of Scottish psychologists conducted an experiment, "losing" 240 wallets on the streets of Edinburgh, which contained the contact details of the owner. In total, 42% of wallets were returned, however, the return percentage varied greatly depending on which photo was inside. So, the owners were sent 88% of wallets that contained a photo of a baby, 53% with a photo of a pet, 48% with a general family photo, 28% with an image of an elderly couple, and only 15% of those where there was no photo at all.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What celestial object accompanied the birth and death of Mark Twain?

In 1835, Halley's comet flew near the Earth, and Mark Twain was born two weeks after its perihelion. In 1909, he wrote: "I came into this world with a comet and I will also leave with it when it arrives next year." And so it happened: Twain died on April 21, 1910, the day after the next perihelion of the comet.

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The secret of the evergreen spruce is revealed 01.01.2021

Scientists have managed to solve the mystery of conifers and find out why they stay green in winter and summer. Many people know that, due to their smaller surface area and denser skin, the needles of fir trees are more resistant to low temperatures than the leaves. They are also protected by a layer of wax.

A team of scientists from Sweden, the Netherlands and Canada has conducted a new study of conifers growing in the cold. At the same time, for the purity of the experiment, the study took place on the street. As a result, they managed to decipher the mechanism of photosynthesis in coniferous plants. In winter, spruces switch to a special mode that protects photosynthetic proteins from damage.

The fact is that in winter, due to frost, many biochemical reactions of plants slow down. Tree needles absorb sunlight, but the process of photosynthesis has a shorter cycle and cannot reach the end.

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