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Problem-Solving and Data Analysis
Difficulty: Medium
The list gives the mass, in grams, of alpine marmots.
; ; ; ;
What is the mean mass, in grams, of these alpine marmots?
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Explanation
The correct answer is . The mean of a data set is the sum of the values in the data set divided by the number of values in the data set. The sum of the masses, in grams, of these alpine marmots is , or grams. The number of alpine marmots in the data set is . Therefore, the mean mass, in grams, of these alpine marmots is , or .