Box Plots

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that displays the distribution through five summary statistics: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What does range mean?

Back

Maximum minus minimum.

Front

What is the median in a box plot?

Back

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

Front

What are quartiles?

Back

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

Front

What is the upper quartile (Q3)?

Back

The upper quartile (Q3) is the median of the upper half of a dataset, representing the 75th percentile.

Front

What percentage of data lies between Q1 and Q3?

Back

50% of the data lies between Q1 and Q3.

Front

How do you find the interquartile range (IQR)?

Back

IQR is found by subtracting Q1 from Q3 (IQR = Q3 - Q1).

Front

What does a box plot indicate about outliers?

Back

Outliers are typically represented as individual points that fall outside the whiskers of the box plot.

Front

What is the purpose of a box plot?

Back

A box plot is used to visually summarize the distribution of a dataset and to identify its central tendency and variability.

Front

How do you interpret the whiskers in a box plot?

Back

The whiskers extend from the box to the smallest and largest values within 1.5 times the IQR from the quartiles.