'Ultrasound was used to gather the accompanying corrosion data on the thickness of the floor plate of an aboveground tank used to store crude oil, each observation is the largest pit depth in the plate, expressed in milli-in. 98 40 52 94 55 115 60 70 75 85 125 85 90 92 94 95 125 100 90 Find
1-Mean 2-Median 3- standard deviationl'