The Department of Transportation (D

question 49

Essay

The Department of Transportation (D.O.T.) in a very large city has organized a new
system of bus transportation. In an advertising campaign, citizens are encouraged to
use the new "GO-D.O.T!" system. Suppose that at one of the bus stops the length of
time (in minutes) that a commuter must wait for a bus is a uniformly distributed
random variable, T. The possible values of T are from 0 minutes to 20 minutes. a) Sketch the probability distribution of T.
b) What is the probability that a randomly selected commuter will spend more than 12 minutes waiting for GO-D.O.T?

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Definitions:

Sociobiology

An interdisciplinary field that emphasizes evolutionary explanations of social behavior in animals, including human beings.

Evolutionary Explanations

Theories that account for the development of traits and behaviors through the process of natural selection.

Social Behavior

Behavior among two or more organisms, typically from the same species, that encompasses cooperation, competition, aggression, and communication.

Linkage Studies

Genetic research aimed at discovering the approximate location of genes on chromosomes through the study of affected families.