Consider the data in the following frequency distribution. Assume the data represent a population. 
For the above data, compute the following.
a.The mean
b.The variance
c.The standard deviation
Definitions:
Big Five Traits
A model that outlines five broad dimensions of human personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.
Cultures
The collective moulds of knowledge, belief, art, morals, law, custom, and any other capabilities and habits acquired by humans as members of society.
Unstructured Interviews
An interview method in which questions are not prearranged, allowing for spontaneous and open-ended discussions.
Structured Interviews
A systematic method of interviewing where all candidates are asked the same predetermined questions with established scoring keys.
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