Question

The average national utility price is $270.48. Over a 6-month period, what is the average utility price in Dallas? How does this compare with the national average?
A graph titled Dallas, Texas, has month on the x-axis and average utility price on the y-axis. For April, the cost was 283 dollars; May, 318 dollars; June, 315 dollars; July, 354 dollars; August, 356 dollars; September, 330 dollars.
a.
$1,956; higher than the national average
b.
$326; higher than the national average
c.
$163; lower than the national average
d.
$333; higher than the national average

Answer 1

b. The 6-month average = (283+318+315+354+356+330)/6 = 1956/6 = $326, which is higher than the national average of $270.48 (by $55.52).