thickness of insulation | Mathematics homework help
A random sample was taken of the thickness of insulation in transformer windings, and the following thicknesses (in millimeters) were recorded: 18 21 22 29 25 31 37 38 41 39 44 48 54 56 56 57 47 38 35 36 29 37 32 42 43 40 48 36 37 37 36 38 40 41 44 39 38 34 24 32 39 44 42 30 […]