One-Variable Data: Easy

Get comfortable with mean, median, mode, and range through direct calculations and real-world data sets.

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Question 1

The daily high temperatures in a city over one week were 68°F, 72°F, 65°F, 74°F, 70°F, 78°F, and 63°F. What is the range of these temperatures?

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A teacher recorded the number of books each of 10 students read over the summer: 2, 3, 5, 3, 4, 3, 6, 2, 4, 3. What is the mode of this data set?

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A student's scores on four quizzes are 80, 85, 90, and 95. After taking a fifth quiz, the student's mean score across all five quizzes is 88. What did the student score on the fifth quiz?

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A student's scores on five tests are 78, 85, 90, 72, and 95. What is the mean of these scores?

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The ages of seven employees at a small company are 25, 31, 28, 45, 33, 29, and 38. What is the median age?

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