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OpenStudy (lin.ivory):
at a traffic light, the red light is on for 30s, amber for 5s, and green for 45s. What is the probability of arriving when the light is red?
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OpenStudy (chaise):
30+45+5=80. The probability =frequency/total chance. Probability =30/80 or 3/8. The chance that the light is red is 3/8, or 0.375 or 37.5%
OpenStudy (lin.ivory):
AHAHAHA!! ok thx!! (the answer key was wrong and i struggled for 10 minutes...)
OpenStudy (kymber):
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