A traffic light at a certain intersection is green 50% of the time, yellow 10% of the
Chapter 4, Problem 4(choose chapter or problem)
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. Let X represent 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. Find \(P(X=3)\).
b. Find \(P(X \leq 3)\).
c. Find \(\mu_{X}\).
d. Find \(\sigma_{X}^{2}\).
Equation Transcription:
Text Transcription:
50%
10%
40%
P(X=3)
P(X \leq 3)
\mu_X
\sigma_X^2
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