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

question 104

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 dollars. What is the probability that the average salary of four randomly selected electricians is more than $50,000 but less than $60,000?

• A) 0.5889
• B) 0.7486
• C) 0.8413
• D) 0.9048

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Definitions:

Child Maltreatment

Behavior towards a child that is outside the norms of conduct and entails substantial risk of causing physical or emotional harm.

Probability

The measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Social Class

A division of society based on social and economic status, affecting access to resources and opportunities.

Domestic Violence

Acts of violence or aggression by one person against another within a domestic setting, such as in a relationship or family.