Certify Teacher EC-6 (391) Mathematics (902) Practice Test

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The median of {3,5,1,9,7} is what number?

3

5

The median is the middle value of a data set when the numbers are arranged from smallest to largest. For this set, sort the numbers: 1, 3, 5, 7, 9. With five values, the middle one is the third entry, which is 5. So the median is 5. The other numbers are either below or above this central value and don’t occupy the middle position.

9

7

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