Box Plot Basics

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that displays its minimum, first quartile (Q1), median, third quartile (Q3), and maximum values.

Front

What does the lower quartile (Q1) represent in a box plot?

Back

The lower quartile (Q1) represents the value below which 25% of the data falls.

Front

What does the upper quartile (Q3) represent in a box plot?

Back

The upper quartile (Q3) represents the value below which 75% of the data falls.

Front

How do you find the median in a box plot?

Back

The median is the middle value of the dataset, represented by the line inside the box of the box plot.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1), representing the range of the middle 50% of the data.

Front

What does a box plot show about data distribution?

Back

A box plot shows the spread and skewness of the data, highlighting outliers and the central tendency.

Front

What is an outlier in a box 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 of the box plot.

Front

How can you compare two box plots?

Back

You can compare two box plots by looking at their medians, quartiles, and overall spread to determine differences in central tendency and variability.

Front

What does a longer whisker in a box plot indicate?

Back

A longer whisker indicates a greater spread of data points in that direction, suggesting more variability.

Front

What is the significance of the median in a box plot?

Back

The median is significant as it provides a measure of central tendency, indicating the middle value of the dataset.