Interpreting Box and Whisker Plot

Front

What is a Box and Whisker Plot?

Back

A Box and Whisker Plot is a graphical representation of a data set that shows its minimum, first quartile (lower quartile), median, third quartile (upper quartile), and maximum.

Front

What does the median represent in a data set?

Back

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

Front

What is the Lower Quartile?

Back

The Lower Quartile (Q1) is the median of the lower half of a data set, representing the 25th percentile.

Front

What is the Upper Quartile?

Back

The Upper Quartile (Q3) is the median of the upper half of a data set, representing the 75th percentile.

Front

How do you find the median of a data set?

Back

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

Front

What does a Box and Whisker Plot show about data spread?

Back

A Box and Whisker Plot shows the spread of data by displaying the range, interquartile range, and outliers.

Front

What is the range of a data set?

Back

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

Front

What does it mean if a Box and Whisker Plot has a long whisker?

Back

A long whisker indicates that there is a larger spread of data points in that direction.

Front

What percentage of data lies between the Lower Quartile and Upper Quartile?

Back

50% of the data lies between the Lower Quartile and Upper Quartile.

Front

What is an outlier in a data set?

Back

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