To determine if Reiki is an effective method for treating pain, a pilot study was carried out where a certified second-degree Reiki therapist provided treatment on volunteers. Pain was measured using a visual analogue scale (VAS) immediately before and after the Reiki treatment (Olson & Hanson, 1997). Higher numbers mean the patients had more pain. Use the box-and-whiskers plots to determine the IQR for the before treatment measurements. Enter your response in the space below. Do Not Round.IQR=
a) 4.75
b) 6.00
c) 7.25
d) 9.50