Understanding Box Plots and Quartiles

The video tutorial explains how box plots are divided into quartiles and the interquartile range (IQR). Each quartile represents 25% of the data set, with the box in the middle covering 50%. The tutorial analyzes the distribution of responses across different ranges, highlighting that most responses fall between 70 and 86.

What percentage of the data set does each quartile in a box plot represent?

• 50%

• 25%

• 75%

• 10%

In a box plot, what percentage of the data is represented by the box in the middle?

• 100%

• 75%

• 50%

• 25%

What is the range of the first quartile in the given data set?

• 58 to 70

• 70 to 86

• 50 to 58

• 86 to 96

Which range contains 50% of the responses in the data set?

• 70 to 86

• 86 to 96

• 58 to 70

• 50 to 58

Where do most of the responses fall in the given data set?

• 70 to 86

• 86 to 96

• 58 to 70

• 50 to 58