The range of the data set {5, 5, 7, 9, 12} is?

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Master the Certify Teacher EC-6 (391) Mathematics Test. Use flashcards and multiple choice questions with explanations. Boost your confidence and excel in your exam!

Multiple Choice

The range of the data set {5, 5, 7, 9, 12} is?

Explanation:
Range measures how spread out the data are by taking the difference between the largest and smallest values. In this set, the smallest value is 5 and the largest is 12. Subtracting gives 12 − 5 = 7, so the range is 7. The repeated 5s don’t affect the range since only the extremes matter.

Range measures how spread out the data are by taking the difference between the largest and smallest values. In this set, the smallest value is 5 and the largest is 12. Subtracting gives 12 − 5 = 7, so the range is 7. The repeated 5s don’t affect the range since only the extremes matter.

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