Question

Paki surveyed the price of unleaded gasoline (self-serve) at gas stations in Novato and Lafayette. The raw data, in dollars per gallon, are given in the following table.

Novato	2.889	3.089	3.429	2.969	2.989	3.109
Lafayette	3.599	3.379	3.199	3.199	3.549	3.349

(a) Find the mean price in each city. (Round your answers to three decimal places.)

Novato	$
Lafayette	$

Which city has the lowest mean?

NovatoLafayette    

(b) Find the standard deviation of prices in each city. (Round your answers to three decimal places.)

Novato	$
Lafayette	$

(c) Which city has more consistently priced gasoline? Why?

The gas in Lafayette is more consistently priced because it has a smaller mean.The gas in Lafayette is more consistently priced because it has a smaller standard deviation.    The gas in Novato is more consistently priced because it has a smaller mean.The gas in Novato is more consistently priced because it has a smaller standard deviation.

Answer 1