Use a Poisson Approximation to the Binomial to Work Out

Multiple Choice

Use a poisson approximation to the binomial to work out the probability that there will be less than two faulty electric motors in a box of 100 with a defect rate of 0.5% (as a percentage, 1 decimal place)

A) 3.8%
B) 4.0%
C) 4.2%
D) 4.4%