Fill in the missing information. tim worker is doing his budget. he discovers that the average miscellaneous expense is $45.00 with a standard deviation of $16.00. what percent of his expense in this category would he expect to fall between $38.60 and $57.80? the z for $38.60 = -. the percent of area associated with $38.60 = % the z for $57.80 = . the percent of area associated with $57.80 = % adding the two together, the percent of his expenses between $38.60 and $57.80 is %