Geometry
posted by aleah on .
The following scores on the midterm exam in Chemistry 102 were recorded:
93 81 59 69 82 73 61 77 95 84 88 71
86 97 63 72 89 80 60 98 91 62 78 83
76 81 94 66 83 96
Find the interquartile range (IQR).

I came up with 15 as the answer. 9681=15. Is this answer correct?