Box and Whisker Plots

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, median, third 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

How do you find the median of an odd set of numbers?

Back

To find the median of an odd set, arrange the numbers in order and select the middle number.

Front

How do you find the median of an even set of numbers?

Back

To find the median of an even set, arrange the numbers in order and calculate the average of the two middle numbers.

Front

What is the range of a data set?

Back

The range is the difference between the greatest and least values in a data set.

Front

What is the interquartile range (IQR)?

Back

The interquartile range is the difference between the third quartile (Q3) and the first quartile (Q1) of a data set.

Front

What does the first quartile (Q1) represent?

Back

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

Front

What does the third quartile (Q3) represent?

Back

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

Front

How do you calculate the range of the data set: 4, 8, 12, 15, 19?

Back

The range is 19 - 4 = 15.

Front

What is the purpose of a Box and Whisker Plot?

Back

A Box and Whisker Plot is used to visually display the distribution of a data set and identify outliers.