A manufacturing machine has a 4% defect rate. If 10 items are chosen at random, what is the probability that at least one will have a defect?

Question

I dont know how to sovle this and would likea step by step process.

Answer 1

The probability p of no defects is p=(1-0.04)¹⁰=0.6648 approx. So the probability of at least one (more than none) defective machine is 1-p=0.3352 or 33.52%.