Suppose the flow of current (milliamps) in wire strips of a certain type under specified conditions can be modeled with a normal distribution having Sigma = 1 a) What proportion of strips will have the current flow of between 18.5 and 22 milliamps? b) What proportion of strips will have the current flow exceeding 15 milliamps? c) How large must a current must flow to be among the largest 5% of all flows? Mu = 20