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 ___%