Suppose That, on Average, Electricians Earn Approximately µ = $54,000

question 74

Multiple Choice

Suppose that, on average, electricians earn approximately µ = $54,000 per year in the United States. Assume that the distribution for electricians' yearly earnings is normally distributed and that the standard deviation is σ = $12,000. What is the probability that the average salary of four randomly selected electricians exceeds $60,000?

• A) 0.1587
• B) 0.3085
• C) 0.6915
• D) 0.8413

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Definitions:

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate in relation to each other.

Cognitive Psychologists

Psychologists who study the mental processes underlying perception, thought, learning, memory, and decision-making.

Neurobiological Events

Processes or occurrences within the nervous system, often at the cellular or molecular level, that affect neurobiological function or behavior.

Mental Events

Internal occurrences within the mind, such as thoughts, feelings, and perceptions, that can influence behavior.