Fast-Food Expenditures The average person, according to one source, spends $151 per year on fast-foods. If the standard deviation is $12, find the corresponding z score for each raw score. Round z scores to at least two decimal places.
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A z-score indicates how many standard deviations an element is from the mean. The formula to calculate a z-score is: \[ z = \frac{(X - \mu)}{\sigma} \] where \( X \) is the raw score, \( \mu \) is the mean, and \( \sigma \) is the standard deviation. Show more…
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