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QuestionStatistics
What is the interquartile range of the data set?
{18,17,10,25,20,20,30,18,18,30,25}
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Answer
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Step 1
First, we need to find the median of the data set. The data set has 12 numbers, so the median is the 6th number when the data is arranged in order.
Step 2
Arrange the data in order: {10, 17, 18, 18, 18, 20, 20, 25, 25, 30, 30}. The median is 18.
Final Answer
The interquartile range of the data set is 7.
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