Hilo, Hawai'i 480cm x 10mm/cm = 4,800mm
We see that Death Valley gets the least rain at 57mm. The Death Valley value is 57mm, which we divide into the value for
Needles to get 117.3/57 = 2.06. So, Needles receives 2.06 times as much
rain as does Death Valley. The ratio is then 1 (57mm/57mm) to 2.06
(117.3mm/57mm).
Yes, the new traffic lights have had an effect, as only 58.48% of surveyed cars had encountered a traffic jam, compared to 60% before the installation of the traffic lights.
