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, median, third quartile, and maximum values.

Front

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

Back

The 'whiskers' in a Box Plot represent the minimum and maximum values of the dataset.

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

How do you find the median in a dataset?

Back

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

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a dataset, representing the 25th percentile.

Front

What is the third quartile (Q3)?

Back

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

Front

How do you calculate the interquartile range (IQR)?

Back

The interquartile range (IQR) is calculated by subtracting the first quartile (Q1) from the third quartile (Q3): IQR = Q3 - Q1.

Front

What does a Stem-and-Leaf Plot show that a Box Plot does not?

Back

A Stem-and-Leaf Plot shows the actual data values, while a Box Plot summarizes the data with quartiles.

Front

What is the range of a dataset?

Back

The range is the difference between the maximum and minimum values in a dataset.

Front

How many data points are above the median in a dataset of 44 values?

Back

In a dataset of 44 values, 22 data points are above the median.