Box Plots

Front

What is a box plot?

Back

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

Front

What does the minimum value represent in a box plot?

Back

The minimum value is the smallest data point in the dataset, represented by the leftmost point on the box plot.

Front

What does the maximum value represent in a box plot?

Back

The maximum value is the largest data point in the dataset, represented by the rightmost point on the box plot.

Front

What is the median in a box plot?

Back

The median is the middle value of the dataset when it is ordered from least to greatest, represented by a line inside the box.

Front

What are quartiles in a box plot?

Back

Quartiles divide the dataset into four equal parts: Q1 (25th percentile), Q2 (50th percentile or median), and Q3 (75th percentile).

Front

What is the interquartile range (IQR)?

Back

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

Front

How do you calculate the IQR?

Back

IQR = Q3 - Q1.

Front

What does the whisker in a box plot represent?

Back

The whiskers extend from the box to the minimum and maximum values, showing the range of the data outside the quartiles.

Front

What is the purpose of a box plot?

Back

Box plots are used to visually summarize the distribution of a dataset, highlighting its central tendency and variability.

Front

How can you compare two box plots?

Back

You can compare two box plots by looking at their medians, IQRs, and overall ranges to understand differences in their distributions.