A factory tests a random sample of 27 transistors for defect

A factory tests a random sample of 27 transistors for defects. The probability that a particular transistor will be defective has been established by past experience as 0.04. What is the probability that there are no defective transistors in the sample?

Solution

p(transisor is not defective) = 1-0.04= 0.96

p(transisor is not defective) = (0.96)^27
                                 = 0.3321