Suppose That,on Average,electricians Earn Approximately Dollars Per Year in the United

question 74

Multiple Choice

Suppose that,on average,electricians earn approximately dollars per year in the United States.Assume that the distribution for electrician's yearly earnings is normally distributed and that the standard deviation is dollars. Refer to Exhibit 7-2.What is the probability that the average salary of four randomly selected electricians is less than $50,000?

• A)0.2514
• B)0.3707
• C)0.6293
• D)0.7486

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Definitions:

Body Mass Index (BMI)

A measure of body fat based on an individual's weight in relation to their height, used to categorize underweight, normal weight, overweight, and obesity.

Overweight

Having more body weight than is considered normal or healthy for one's age, height, and body type.

Cognitive Development

The process by which a child learns to reason, solve problems, and think consciously as they grow older.

Lev Vygotsky

A Russian psychologist who developed theories on social cognitive development, emphasizing the role of social interactions and cultural tools in the development of thinking and learning.