SOLUTION: It has been reported that 5% of all cars on the highway are traveling at speeds in excess of 70 mph. if the speeds of four random automobiles are measured via radar, what is the pr

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Question 1124605: It has been reported that 5% of all cars on the highway are traveling at speeds in excess of 70 mph. if the speeds of four random automobiles are measured via radar, what is the probability that none of the cars are going over 70 mph?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This would be 0.95^4, or 0.815 probability. Use the complement rule, getting what you don't want but can subtract it from 1.