The box plots summarize the masses, in kilograms, of two groups of gazelles. Based on the box plots, which of the following statements about the interquartile range (IQR) of masses is true?
The IQR of Group 1 is greater than the IQR of Group 2.
The IQR of Group 2 is greater than the IQR of Group 1.
The IQRs of Group 1 and Group 2 are equal.
The IQR of Group 1 is 1 kg less than the IQR of Group 2.
