Complete question :
Information about the age of participants in a robotics competition is below: A box plot titled "Age of Participants" and labeled "Age" uses a number line from 10 to 35 with primary markings and labels at 10, 15, 20, 25, 30, and 35. The box extends from 13 to 31 on the number line. A line in the box is at 16. The whiskers end at 11 and 33. The middle 50% of the data is between what two numbers?
Answer:
13 and 31
Explanation:
The middle 50% refers to the interquartile range which is the difference between the upper and lower quartile values.
Interquartile range (IQR) = Q3 - Q1
Q3 is represented on a boxplot as the end point of the box while Q1 marks the starting point of the box.
Hence the range the box Given as :
13 to 31 ;thus middle 50% is between 13 and 31.