Disproportionate weight in favor of or against an idea or thing / From Wikipedia, the free encyclopedia

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Bias is a disproportionate weight in favor of or against an idea or thing, usually in a way that is closed-minded, prejudicial, or unfair. Biases can be innate or learned. People may develop biases for or against an individual, a group, or a belief.[1] In science and engineering, a bias is a systematic error. Statistical bias results from an unfair sampling of a population, or from an estimation process that does not give accurate results on average.[2]

Interpretations of the random patterns of craters on the Moon. A common example of a perceptual bias caused by pareidolia.

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