Statistics quiz

Find the mean:
28, 18, 19, 18, 17

• 20
• 18
• 11
• 19

Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4

• 9
• 5
• 3
• 7

Find the median:
3.8, 4.2, 4.0, 4.2, 4.2

• 4.2
• 3.8
• 4.0

What is the interquartile range (IQR)?

• 4
• 64
• 60
• 8

Which plot has a larger interquartile range?

• Top plot
• Bottom plot

Which box and whisker plot has the highest median?

• Top plot
• Bottom plot

What percent of students have heights between 60 inches and 66 inches?

• 75%
• 50%
• 100%
• 25%