Study Problems Chapter 2: (not to turn in)

(within chapter): 2-1, 2-2, 2-4, 2-9 (answers in back of text)

(Review, end of chapter): 1, 3, 4, 5, 6, 8, 10, 11, 15, 16, 17, 18

FIELD DATA : Taking the pulse of Seattle, a traffic survey to estimate CO₂ integrated emissions. (We will use these data later when we study global warming and urban air quality)

GOAL: to assess (1) the fraction of vehicles which have only the driver (2) the fraction of the vehicles which are not cars (i.e. SUV, minivans, light trucks).

PROCEDURE: on two different days, find a busy street or highway (rush hour is best). Sample the traffic for one minute intervals, or about 100 vehicles, whichever comes first. Repeat the sampling at least 5 times to get a reliable result. It is easiest to work with a partner, one counting total vehicles passing, one determining which vehicles are not cars, or which have only the driver with no other passengers.

REPORT: your data as the mean and standard deviation and the number of sampling periods. Be sure to give the date, time, and location of your survey.

DUE: Tuesday, Jan 11 in Quiz Sections.