Box and Whisker Plots

Front

What is a Box and Whisker Plot?

Back

A Box and Whisker Plot is a graphical representation of data that shows the distribution of a dataset based on five summary statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does the minimum value represent in a Box and Whisker Plot?

Back

The minimum value represents the smallest data point in the dataset.

Front

What does the maximum value represent in a Box and Whisker Plot?

Back

The maximum value represents the largest data point in the dataset.

Front

What is the median in a Box and Whisker Plot?

Back

The median is the middle value of the dataset when it is ordered from least to greatest.

Front

What are quartiles in a Box and Whisker Plot?

Back

Quartiles are values that divide the dataset into four equal parts. Q1 is the first quartile, Q2 is the median, and Q3 is the third quartile.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1). It measures the spread of the middle 50% of the data.

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How do you find the first quartile (Q1)?

Back

Q1 is found by determining the median of the lower half of the dataset (excluding the overall median if the number of data points is odd).

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How do you find the third quartile (Q3)?

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Q3 is found by determining the median of the upper half of the dataset (excluding the overall median if the number of data points is odd).

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What does a Box and Whisker Plot tell us about the data?

Back

A Box and Whisker Plot provides insights into the central tendency, variability, and distribution of the data, including potential outliers.

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What is an outlier in a Box and Whisker Plot?

Back

An outlier is a data point that lies significantly outside the range of the other data points, often represented as individual points beyond the whiskers.