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OpenStudy (anonymous):
A health and fitness club surveys 40 randomly selected members and found that the average weight of those questioned is 157lb. Is the given value a statistic or a parameter?
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OpenStudy (kropot72):
The term 'statistic' is used for any function of sample data, such as mean, median or standard deviation. The term 'parameter' is used for a parent population. Parameters are often assigned Greek letters such as mu and sigma.
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