9.2 Review

What is the interquartile range?

• 4
• 6
• 2
• 8

What value is the lower quartile?

• 66
• 58
• 60
• 64

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number
• Add the two numbers in the middle & then divide by two.
• They are both the median
• None of the above

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

• Add the biggest and smallest numbers.
• Place the numbers in order from least to greatest and find the middle.
• Find the difference between the maximum and the minimum.
• Subtract Q1 from Q3.

What percent of students have a height between 58 inches and 60 inches?

• 25%
• 50%
• 75%
• 100%

What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%

What is the term for the median of the upper half of the data?

• Upper Quartile
• Lower Quartile
• Median
• Minimum

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

What is the upper quartile of the set of data; 2, 4, 6, 6, 7, 8, 10

• 4

• 6

• 8

• 2

• The median test score is 80.

• The lower quartile is 65.

• The upper quartile is 90.

• The IQR is 30.