The fol lowing data give the total food expenditures. l[in dollars] for the past one month for a sample of 20 families. 1113 530 1245 597 424 863 1470 692 127'3 1193 945 1114 723 1069 946 1620 1045 2167 1341 447 3. Calculate the values of the three quartiles and the interquartile range. b. Find the approximate value of the 57th percentile- I: c. Calculate the percentile rank of 1045. E: 96 Save for Later Attempts: O of 2 used