A traffic light at a certain intersection is green 50% of the
time,yellow 10% of the time, and red 40% of the time. A car
approaches this intersection once each day. We would like to know
about the number of days that pass up to and including the first
time the car encounters a red light. Assume that each day
represents an independent trial.
a) Define the random variable of interest, it support, and
parameter values.
b) What is the...