Police estimate that 65% of drivers wear their seat belts.If they stop 4 drivers at random,what is the probability that none of them are wearing their seat belts?

Question

Quizplus · Accepted Answer

The probability that one driver is not wearing their seat belt is 1-0.65=0.35. 
Therefore, the probability that none of 4 drivers are wearing their seat belts is: 
0.35 x 0.35 x 0.35 x 0.35 = 0.015 or 1.5% (rounded to 3 decimal places) 
So, the best choice is (C) with the probability of 0.0150.

Police Estimate That 65% of Drivers Wear Their Seat Belts