Box Plots

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the minimum, first quartile, median, third quartile, and maximum values.

Front

What does the median represent in a box plot?

Back

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

Front

What are quartiles?

Back

Quartiles are values that divide a data set into four equal parts, with each part containing 25% of the data.

Front

What is the interquartile range (IQR)?

Back

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

Front

What does the range of a data set indicate?

Back

The range indicates the difference between the maximum and minimum values in a data set.

Front

How do you find the median of a data set?

Back

To find the median, order the data from least to greatest and identify the middle value.

Front

What does a box plot show about the spread of data?

Back

A box plot visually represents the spread of data by showing the quartiles and any outliers.

Front

What is an outlier in a data set?

Back

An outlier is a value that is significantly higher or lower than the other values in a data set.

Front

How can you tell if data is skewed using a box plot?

Back

If the median is closer to one quartile than the other, the data is skewed in the direction of the closer quartile.

Front

What does the lower quartile (Q1) represent?

Back

The lower quartile (Q1) represents the median of the lower half of the data set.