A random sample of weights (in carats) of sapphires in a jeweler's collection is shown. Find the mean of the sample. 
Definitions:
Groupthink
A psychological phenomenon that occurs within a group of people, where the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.
Censoring
The suppression or prohibition of any parts of books, films, news, etc. that are considered obscene, politically unacceptable, or a threat to security.
Relevant Information
Data or facts closely related to the subject at hand or of importance to the decision-making process.
Actor-Observer Effect
A tendency to attribute one's own actions to external causes while attributing other people's behaviors to their internal characteristics.
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