Suppose you have a 
2 distribution with 20 degrees of freedom.
a.Find the mean.
b.Find the variance.
c.Find the standard deviation.
Definitions:
Emotions
Complex psychological states that involve an experience, physiological response, and behavioral or expressive response.
Efficient
Achieving maximum productivity with minimum wasted effort or expense.
Groupthink
A phenomenon where the desire for harmony or conformity within a decision-making group leads to irrational or dysfunctional decision-making outcomes.
Devil's Advocate
A person who expresses a contentious opinion in order to provoke debate or test the strength of the opposing arguments.
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