If Q1 = 3 and Q3 = 8 for a dataset, what is the interquartile range?

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Multiple Choice

If Q1 = 3 and Q3 = 8 for a dataset, what is the interquartile range?

Explanation:
The interquartile range measures the spread of the middle half of the data, and it’s found by subtracting the first quartile from the third quartile. If Q1 = 3 and Q3 = 8, then IQR = 8 − 3 = 5. This tells you the central 50% of observations fall within a 5-unit range, from 3 to 8. So the interquartile range is 5.

The interquartile range measures the spread of the middle half of the data, and it’s found by subtracting the first quartile from the third quartile. If Q1 = 3 and Q3 = 8, then IQR = 8 − 3 = 5. This tells you the central 50% of observations fall within a 5-unit range, from 3 to 8. So the interquartile range is 5.

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