Box/Whisker Plots & Stem-Leaf Plots

Front

What is a Box Plot?

Back

A Box Plot (or Box-and-Whisker Plot) is a graphical representation of a dataset that displays the minimum, first quartile (Q1), median, third quartile (Q3), and maximum values.

Front

What does the 'whisker' in a Box Plot represent?

Back

The 'whisker' in a Box Plot represents the range of the data outside the interquartile range (IQR), extending to the minimum and maximum values.

Front

How do you find the median in a dataset?

Back

To find the median, arrange the data in ascending order and identify the middle value. If there is an even number of values, average the two middle values.

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 create a Stem-and-Leaf Plot?

Back

To create a Stem-and-Leaf Plot, separate each data point into a 'stem' (the leading digit(s)) and a 'leaf' (the trailing digit). List the stems in a column and write the leaves next to their corresponding stems.

Front

What is the purpose of a Stem-and-Leaf Plot?

Back

A Stem-and-Leaf Plot is used to display quantitative data in a way that retains the original data values while showing the distribution.

Front

What does a Box Plot tell you about a dataset?

Back

A Box Plot provides information about the central tendency, variability, and skewness of the data, as well as potential outliers.

Front

What is the minimum value in a dataset?

Back

The minimum value is the smallest number in a dataset.

Front

What is the maximum value in a dataset?

Back

The maximum value is the largest number in a dataset.

Front

How do you find Q1 and Q3 in a dataset?

Back

To find Q1, locate the median of the lower half of the data. To find Q3, locate the median of the upper half of the data.