What is a Box Plot?
Box/Whisker Plots & Stem-Leaf Plots

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•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A Box Plot, or Box-and-Whisker Plot, is a graphical representation of a dataset that displays the median, quartiles, and extremes of the data. It helps visualize the distribution and identify outliers.
2.
FLASHCARD QUESTION
Front
What does the term 'interquartile range' (IQR) mean?
Back
The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a dataset. It measures the spread of the middle 50% of the data.
3.
FLASHCARD QUESTION
Front
How do you find the median in a dataset?
Back
To find the median, arrange the data in ascending order and locate the middle value. If there is an even number of values, the median is the average of the two middle values.
4.
FLASHCARD QUESTION
Front
What is a Stem-and-Leaf Plot?
Back
A Stem-and-Leaf Plot is a method of displaying quantitative data in a graphical format, similar to a histogram, that retains the original data values. Each number is split into a 'stem' (the leading digit(s)) and a 'leaf' (the trailing digit).
5.
FLASHCARD QUESTION
Front
What does the term 'quartile' refer to?
Back
A quartile is a type of quantile that divides a dataset into four equal parts. The first quartile (Q1) is the median of the lower half, the second quartile (Q2) is the median of the dataset, and the third quartile (Q3) is the median of the upper half.
6.
FLASHCARD QUESTION
Front
How do you determine the first quartile (Q1)?
Back
To find Q1, arrange the data in ascending order and find the median of the lower half of the dataset.
7.
FLASHCARD QUESTION
Front
What is the purpose of a Box Plot?
Back
The purpose of a Box Plot is to provide a visual summary of the central tendency, variability, and distribution of a dataset, making it easier to compare different datasets.
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