At a particular toll booth,20% of vehicles use transponders while the rest have their license plates scanned.Usually,150 vehicles pass this toll booth during any one hour time period.During the next hour,what is the probability that more than 40 vehicles will pass through using a transponder?
A)3.23%
B)6.17%
C)1.85%
D)96.77%

Question

Quizplus · Accepted Answer

The number of vehicles using transponders follows a binomial distribution with n=150 and p=0.2. We need to find P(X > 40). Using normal approximation, we find P(X > 40) ≈ 3.23%.

At a Particular Toll Booth,20% of Vehicles Use Transponders While