The Mean of Fifty Sales Receipts Is $65

question 34

True/False

The mean of fifty sales receipts is $65.75 and the standard deviation is $10.55. Using Chebyshev's theorem, at least 75% of the sales receipts were between $44.65 and $86.85.

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Definitions:

Systematic Desensitization

A therapeutic intervention aimed at reducing an individual's anxiety responses through gradual exposure to the feared object or situation, along with relaxation techniques.

Relaxation Training

A therapeutic technique designed to help individuals learn to reduce stress and anxiety through specific physical exercises and controlled breathing.

Assertiveness Training

A behavioral therapy technique designed to help individuals clearly and confidently express their needs and rights without infringing on the rights of others.

Classical Conditioning

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus, leading to a learned response.