Math Problem Statement
A recent survey by the American Automobile Association showed that a family of two adults and two children on vacation in the United States will pay an average of $247 per day for food and lodging with a standard deviation of $60 per day. Assuming the data are normally distributed, find, to the nearest hundredth, the z-scores for each of the following vacation expense amounts. a. $197 per day.
b. $277 per day.
c. $310 per day.
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Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Normal Distribution
Z-Scores
Formulas
Z = (X - μ) / σ
Theorems
Empirical Rule
Suitable Grade Level
Grades 10-12
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