What is the interquartile range (IQR)?
Box and Whisker (Review)

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Mathematics
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The interquartile range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1) in a data set. It measures the spread of the middle 50% of the data.
2.
FLASHCARD QUESTION
Front
What does a box and whisker plot represent?
Back
A box and whisker plot visually displays the distribution of a data set, showing the median, quartiles, and potential outliers.
3.
FLASHCARD QUESTION
Front
What is the median in a data set?
Back
The median is the middle value when the data set is ordered from least to greatest. If there is an even number of values, the median is the average of the two middle numbers.
4.
FLASHCARD QUESTION
Front
How do you find the lower quartile (Q1)?
Back
The lower quartile (Q1) is the median of the lower half of the data set (excluding the overall median if the number of data points is odd).
5.
FLASHCARD QUESTION
Front
What is the upper quartile (Q3)?
Back
The upper quartile (Q3) is the median of the upper half of the data set (excluding the overall median if the number of data points is odd).
6.
FLASHCARD QUESTION
Front
What is the range of a data set?
Back
The range is the difference between the highest and lowest values in a data set.
7.
FLASHCARD QUESTION
Front
What does a higher median indicate in box and whisker plots?
Back
A higher median indicates that the central tendency of the data is higher, suggesting that most of the data points are larger.
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