Tim Worker is doing his budget. He discovers that the average electric
bill for the year was $206.00 with a standard
deviation of $10.00. What percent of his expenses in this category would he expect to fall between $184.00 and
$200.00?
The z for $184.00 =- •
The percent of area associated with $184.00
The z for $200.00
The percent of area associated with $200.00
%
Subtracting the two percentages, the percent of expenses between $184.00 and $200.00 is