Paula Pious is doing her budget. She discovers that the average miscellaneous expense is $65.00 with a standard deviation of $18.00. What percent of her expenses in this category would she expect to fall between $54.20 and $86.60?

The z for $54.20 = - ^a0.

The percent of area associated with $54.20 = ^a1 %.

The z for $86.60 = ^a2.

The percent of area associated with $86.60 = ^a3 %.

Adding the two together, the percent of her expenses between $54.20 and $86.60 is ^a4 %.