Box Plots & Data Inferences

A quartile is what percentage of a box plot?

• 0%

• 25%

• 50%

• 100%

Which of the following best describes the process of finding the interquartile range for a set of data?

• Subtract the median from the mean.

• Subtract the mean from the median.

• Subtract the minimum from the maximum.

• Subtract Q1 from Q3.

What section of the box plot is represented by "whiskers"?

• Q1 & Q2

• Q1 & Q4

• Q2 & Q3

• Q3 & Q4

Which of the following processes describes how to find the lower quartite?

• Find the median of the set and then find the median of the lower half of the set.

• Find the median of the set and then find the median of the upper half of the set.

• Subtract the median from the maximum.

• Subtract the minimum from the median.

Which of the following statements is NOT true in regards to box plots?

• Box plots are an effective way to compare individual data inputs.

• It is possible for a box plot to have no visible "whiskers".

• Only five numbers marked on a box plot.

• The "box" represents 50% of the data.

In the following set of data, what is Q1?

16, 12, 10, 5, 20, 16, 8

• 5

• 7.5

• 8

• 16

In the following set of data, what is the IQR?

16, 12, 10, 5, 20, 16, 8

• 5

• 8

• 15

• 16

What is the IQR of this box plot?

• 5

• 6

• 8

• 12

What is Q3 on this box plot?

• 4

• 9

• 11

• 14

Which of the following sets of data is represented by this box plot?

• 6, 11, 18

• 6, 9, 14, 18

• 6, 9, 10, 12, 14, 18

• 6, 9, 10, 11, 13, 14, 20