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Lake Wobegon effect

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arithmetic mean

arithmetic mean  

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In descriptive statistics, the average value, calculated (for a finite set of scores) by adding the scores together and then dividing the total by the number of scores. Often referred to simply as ...
mean

mean  

In statistics, the average as calculated by the sum of each data point divided by the total number of data points. See also variance.
self-serving bias

self-serving bias  

1. Any tendency to interpret events in ways that favour the interpreter.2. (defensive attribution) (psychology) A tendency for individuals to attribute their own successes to personal strengths (such ...
unrealistic optimism

unrealistic optimism  

A judgemental bias that tends to affect people's subjective estimates of the likelihood of future events in their lives, causing them to overestimate the likelihood of positive or desirable events ...

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