An instrument manufactured by a company consists of two parts A and B in manufacturing part A, 9 out of 100 are likely to be defective and in manufacturing part B, 5 out of 100 are likely to be defective. Calculate the probability that both the instruments will not be defective.
Given, part A is not defective P(A) = `91/100`
and part B is not defective, P(B) = `95/100`
∴ Required probability = P(A) x P(B)
= 0.8645 = 0.86