Understanding Box Plots and Five Number Summary

The video tutorial explains the five number summary, which is used to create a box plot. It details the components of a box plot: minimum, Q1 (first quartile), median, Q3 (third quartile), and maximum. An example is provided where the five number summary is identified as 5, 16, 18, 19, and 20. The tutorial aims to help viewers understand how to derive these values from a box plot.

What is the primary purpose of a five number summary in relation to a box plot?

• To determine the mode of the data set

• To create a box plot

• To identify the range of the data set

• To calculate the mean of the data set

Which of the following is NOT a component of the five number summary?

• Maximum

• Mean

• Minimum

• Median

What is the first quartile (Q1) in a five number summary?

• The value below which 25% of the data falls

• The highest value in the data set

• The lowest value in the data set

• The median of the data set

In the given example, what is the median value?

• 20

• 19

• 18

• 16

What is the maximum value in the example provided?

• 16

• 18

• 20

• 19