There are different kinds of social learning biases. The tendency of people to buy a book because of the high sales figures of the book is an example of:

Question

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The tendency to buy a book because of high sales figures is an example of popularity bias, where the popularity of a book influences an individual's decision to purchase it. This bias is driven by the belief that if many people are buying a particular product, it must be good or worthwhile.

There Are Different Kinds of Social Learning Biases