The correct conclusion you can make about the interquartile range (IQR) of Jenny’s box plot is:
C The middle 50% of the dogs weighed between 5 and 15 pounds.
The interquartile range represents the range of the middle 50% of the data, which is defined by the first quartile (Q1) and the third quartile (Q3). Therefore, stating that the middle 50% of the dogs weighed between 5 and 15 pounds accurately describes what the IQR indicates.