Mathematics, 25.02.2020 21:49 brandonm39
Relationships between means, standard deviations, X values, and z-scores
The International Average Salary Income Database provides a comparison of average salaries for various professions. The data are gathered from publications and reports obtained directly from government agencies (such as the U. S. Bureau of Labor Statistics) or from the International Labour Organization.
1. Suppose you are told that a firefighter in Portugal who makes $510.10 has a z-score of -0.50 relative to other firefighters in Portugal and that the standard deviation of the salary of firefighters in Portugal is $145.80. The average salary, then, for firefighters in Portugal is .
2. Suppose you are also told that a firefighter in Finland who makes $2,291.90 has a z-score of +0.50 relative to other firefighters in Finland and that the mean of the salary of firefighters in Finland is $2,132. The standard deviation of the salary, then, for firefighters in Finland is .
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Relationships between means, standard deviations, X values, and z-scores
The International Av...
The International Av...
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