Solve the problem.
-A traffic light is red for 50 seconds, yellow for 5 seconds, and green for 40 seconds. Find the probability: P(the light is green)
A) $\frac { 1 } { 95 }$
B) $\frac { 1 } { 28 }$
C) $\frac { 1 } { 14 }$
D) $\frac { 1 } { 19 }$

Question

Quizplus · Accepted Answer

The total cycle time of the traffic light is 50 (red) + 5 (yellow) + 40 (green) = 95 seconds. The probability that the light is green is the duration of green light divided by the total cycle time, which is $ \frac { 40 } { 95 } = \frac { 8 } { 19 } $, matching choice D.

Solve the Problem 195\frac { 1 } { 95 }951​ B) 128\frac { 1 } { 28 }281​

Solve the Problem $\frac { 1 } { 95 }$ B) $\frac { 1 } { 28 }$