The Mean of 40 Sales Receipts Is $69

question 82

True/False

The mean of 40 sales receipts is $69.75 and the standard deviation is $10.25. Using Tchebysheff's Theorem, at least 75% of the sales receipts were between $49.25 and $90.25.

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Definitions:

Neuroticism

A personality trait characterized by tendencies toward anxiety, depression, anger, and emotional instability.

Conscientiousness

A personality trait characterized by organization, dependability, discipline, and a strong sense of duty.

Agreeableness

A personality trait characterized by warmth, kindness, and a willingness to cooperate and get along with others.

Longitudinal Study

A research method that studies the same subjects over a period of time, allowing for the observation of changes or developments.