Box and Whisker Plots

Front

What is a Box and Whisker Plot?

Back

A Box and Whisker Plot is a graphical representation of a data set that shows its minimum, first quartile (Q1), median, third quartile (Q3), and maximum values.

Front

What does Q1 represent in a Box and Whisker Plot?

Back

Q1, or the first quartile, represents the median of the lower half of the data set, indicating that 25% of the data points are below this value.

Front

What does Q3 represent in a Box and Whisker Plot?

Back

Q3, or the third quartile, represents the median of the upper half of the data set, indicating that 75% of the data points are below this value.

Front

How do you find the interquartile range (IQR)?

Back

The interquartile range (IQR) is found by subtracting Q1 from Q3 (IQR = Q3 - Q1). It measures the spread of the middle 50% of the data.

Front

What is the maximum value in a Box and Whisker Plot?

Back

The maximum value is the highest data point in the data set, represented by the rightmost point of the whisker.

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What is the minimum value in a Box and Whisker Plot?

Back

The minimum value is the lowest data point in the data set, represented by the leftmost point of the whisker.

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What does the median represent in a Box and Whisker Plot?

Back

The median is the middle value of the data set when arranged in ascending order, dividing the data into two equal halves.

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What is the purpose of a Box and Whisker Plot?

Back

The purpose of a Box and Whisker Plot is to visually summarize the distribution of a data set, highlighting its central tendency and variability.

Front

How can you identify outliers in a Box and Whisker Plot?

Back

Outliers can be identified as data points that fall below Q1 - 1.5*IQR or above Q3 + 1.5*IQR.

Front

What does the length of the box in a Box and Whisker Plot represent?

Back

The length of the box represents the interquartile range (IQR), showing the range of the middle 50% of the data.