The correct answer is the first: The interquartile range of Mitchell's data is greater than the interquartile range of Luke's data. Since the interquartile range (RIC) is equal to:
RIC = Q3-Q1
Of the gracifa can be observed quer for the case of Mitchell: RIC = 34-25 = 9
While for Luke's case: RIC = 36-28 = 8.
Therefore Mitchell's interquartile range (RIC) is greater than Luke's.