The box-and-whisker plot shown summarizes the number of hours a group of music students spent practicing for a concert in a week.
What is the interquartile range for this data?

A. 20

B. 15

C. 10

D. 5
The graph is in the comments below.

Question

The box-and-whisker plot shown summarizes the number of hours a group of music students spent practicing for a concert in a week. 
   What is the interquartile range for this data?
  
 A.  20
 
 B.  15
 
 C.  10
 
 D.  5
The graph is in the comments below.

anonymous · Answer

Here is the link for the graph. http://static.k12.com/calms_media/media/713000_713500/713007/2/31ac36c70bf62cb4fafc418f4ea174bada0af716/67648_question.jpg @jwhite12

anonymous · Answer

Interquartile range is Q3 - Q1.  Can you find Q3 and Q1 from the graph?

anonymous · Answer

Q1 is 10, Q2 is 15, Q3 is 20 so it would be 20-10. That equals 10. Am I corresct @jwhite12?

anonymous · Answer

PERFECT!

anonymous · Answer

I knew how to do it I just wasn't positive. Thank you so much for your help @jwhite12!

anonymous · Answer

No problem!