6. Data Analysis Pracitce

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

• 25%

• 50%

• 75%

• 100%

Consider the boxplot below. What is the median, Q₂?

• 3
• 4
• 8
• 14

A sample was taken of the salaries of 20 employees of a large company.  The box plot shows the salaries (in thousands of dollars) for this year.
Based on the boxplot, the five-number summary is...

• 28, 39, 48, 60.5, 77
• 28, 41, 48, 58, 77
• 28, 39, 51, 58, 77
• 28, 41, 51, 60.5, 77

How do I find the interquartile range in a box plot?
hint: look at your notes on boxplots!

• Add Q1 plus Q2
• Subtract Q2 minus Q1
• Subtract Q3 minus Q1
• Add Q3 plus Q1

How many scores are listed in this Stem and Leaf Plot?

• 3
• 6
• 9
• 18

What is the minimum in this data set?

• 0
• 4
• 9
• 40

• A

• B

• C

• D

If a point was outside of the purple or green line it would represents the ...

• Min

• Max

• Outlier

• Q2

What percentage of students scored a 39 or higher?

• None

• 25%

• 50%

• 75%

The middle 50% of scores were between....

• 30-39

• 30-50

• 39-55

• 50-68